DARDANELLE, Ark. (KTHV) -- Law enforcement officers all over the country are saluting an officer that was killed in the line of duty on Thursday.

Lieutenant Kevin C. Mainhart, 46, of the Yell County Sheriff’s Department was killed in the line of duty Thursday during a traffic stop west of Dardanelle, Arkansas along State Highway 27 near the junction of Slo-Fork Road.

Lieutenant Mainhart served four years in the U.S. Air Force as a Security Forces Officer. He then returned to Russellville where he worked for the Arkansas Tech Public Safety. His next move was to West Memphis where he served in the West Memphis Police Department. He worked for the West Memphis Police Department for 20 years and left as a Captain. The past five years he has been working for the Yell County Sheriff's Office.

Many officers and police department across America took to social media to express their condolences and give Lieutenant Mainhart a final salute.

We will continue to update the story with more reactions from police officers in the United States.

Officer Tommy Norman with the Little Rock Police Department:

{"author_name":"Officer Tommy M Norman","author_url":"https://www.facebook.com/OfficerTommyNorman/","provider_url":"https://www.facebook.com","provider_name":"Facebook","success":true,"height":null,"html":"&#lt;div id=\"fb-root\"&#gt;&#lt;/div&#gt;\n&#lt;script&#gt;(function(d, s, id) {\n var js, fjs = d.getElementsByTagName(s)[0];\n if (d.getElementById(id)) return;\n js = d.createElement(s); js.id = id;\n js.src = \"//connect.facebook.net/en_US/sdk.js#xfbml=1&version=v2.3\";\n fjs.parentNode.insertBefore(js, fjs);\n}(document, 'script', 'facebook-jssdk'));&#lt;/script&#gt;&#lt;div class=\"fb-post\" data-href=\"https://www.facebook.com/OfficerTommyNorman/photos/a.1160592244020801.1073741828.1158596744220351/1468432786570077/?type=3\" data-width=\"552\"&#gt;&#lt;blockquote cite=\"https://www.facebook.com/OfficerTommyNorman/posts/1468432786570077:0\" class=\"fb-xfbml-parse-ignore\"&#gt;&#lt;p&#gt;Arkansas law enforcement lost one of its own today as Lieutenant Kevin Mainhart of the Yell County Sheriff's Department...&#lt;/p&#gt;Posted by &#lt;a href=\"https://www.facebook.com/OfficerTommyNorman/\"&#gt;Officer Tommy M Norman&#lt;/a&#gt; on &#lt;a href=\"https://www.facebook.com/OfficerTommyNorman/posts/1468432786570077:0\"&#gt;Thursday, May 11, 2017&#lt;/a&#gt;&#lt;/blockquote&#gt;&#lt;/div&#gt;","type":"rich","version":"1.0","url":"https://www.facebook.com/OfficerTommyNorman/photos/a.1160592244020801.1073741828.1158596744220351/1468432786570077/?type=3","width":552}

Chicago Police Department:

Little Rock Police Department:

{"author_name":"Little Rock Police Department","author_url":"https://www.facebook.com/Little-Rock-Police-Department-1401429590079824/","provider_url":"https://www.facebook.com","provider_name":"Facebook","success":true,"height":null,"html":"&#lt;div id=\"fb-root\"&#gt;&#lt;/div&#gt;\n&#lt;script&#gt;(function(d, s, id) {\n var js, fjs = d.getElementsByTagName(s)[0];\n if (d.getElementById(id)) return;\n js = d.createElement(s); js.id = id;\n js.src = \"//connect.facebook.net/en_US/sdk.js#xfbml=1&version=v2.3\";\n fjs.parentNode.insertBefore(js, fjs);\n}(document, 'script', 'facebook-jssdk'));&#lt;/script&#gt;&#lt;div class=\"fb-post\" data-href=\"https://www.facebook.com/1401429590079824/photos/a.1401480900074693.1073741828.1401429590079824/1868936786662433/?type=3\" data-width=\"552\"&#gt;&#lt;blockquote cite=\"https://www.facebook.com/permalink.php?story_fbid=1868936786662433&id=1401429590079824&substory_index=0\" class=\"fb-xfbml-parse-ignore\"&#gt;&#lt;p&#gt;Today a fellow officer in Yell county was shot and killed in the line of duty. LRPD officers will be honoring this...&#lt;/p&#gt;Posted by &#lt;a href=\"https://www.facebook.com/Little-Rock-Police-Department-1401429590079824/\"&#gt;Little Rock Police Department&#lt;/a&#gt; on &#lt;a href=\"https://www.facebook.com/permalink.php?story_fbid=1868936786662433&id=1401429590079824&substory_index=0\"&#gt;Thursday, May 11, 2017&#lt;/a&#gt;&#lt;/blockquote&#gt;&#lt;/div&#gt;","type":"rich","version":"1.0","url":"https://www.facebook.com/1401429590079824/photos/a.1401480900074693.1073741828.1401429590079824/1868936786662433/?type=3","width":552}

Trinidad Police Department:

Independence County Sheriff's Department:

{"author_name":"Independence County Sheriffs Department","author_url":"https://www.facebook.com/independencecountysheriffsdepartment/","provider_url":"https://www.facebook.com","provider_name":"Facebook","success":true,"height":null,"html":"&#lt;div id=\"fb-root\"&#gt;&#lt;/div&#gt;\n&#lt;script&#gt;(function(d, s, id) {\n var js, fjs = d.getElementsByTagName(s)[0];\n if (d.getElementById(id)) return;\n js = d.createElement(s); js.id = id;\n js.src = \"//connect.facebook.net/en_US/sdk.js#xfbml=1&version=v2.3\";\n fjs.parentNode.insertBefore(js, fjs);\n}(document, 'script', 'facebook-jssdk'));&#lt;/script&#gt;&#lt;div class=\"fb-post\" data-href=\"https://www.facebook.com/independencecountysheriffsdepartment/photos/a.702541339871121.1073741828.689569417834980/776876872437567/?type=3\" data-width=\"552\"&#gt;&#lt;blockquote cite=\"https://www.facebook.com/independencecountysheriffsdepartment/posts/776876872437567:0\" class=\"fb-xfbml-parse-ignore\"&#gt;&#lt;p&#gt;The men and women of the Independence County Sheriff's Department would like to express our condolences to the...&#lt;/p&#gt;Posted by &#lt;a href=\"https://www.facebook.com/independencecountysheriffsdepartment/\"&#gt;Independence County Sheriffs Department&#lt;/a&#gt; on &#lt;a href=\"https://www.facebook.com/independencecountysheriffsdepartment/posts/776876872437567:0\"&#gt;Thursday, May 11, 2017&#lt;/a&#gt;&#lt;/blockquote&#gt;&#lt;/div&#gt;","type":"rich","version":"1.0","url":"https://www.facebook.com/independencecountysheriffsdepartment/photos/a.702541339871121.1073741828.689569417834980/776876872437567/?type=3","width":552}

Warrenton Police Department:

Hot Springs Police Department:

{"author_name":"Hot Springs Police Department","author_url":"https://www.facebook.com/HotSpringsPD/","provider_url":"https://www.facebook.com","provider_name":"Facebook","success":true,"height":null,"html":"&#lt;div id=\"fb-root\"&#gt;&#lt;/div&#gt;\n&#lt;script&#gt;(function(d, s, id) {\n var js, fjs = d.getElementsByTagName(s)[0];\n if (d.getElementById(id)) return;\n js = d.createElement(s); js.id = id;\n js.src = \"//connect.facebook.net/en_US/sdk.js#xfbml=1&version=v2.3\";\n fjs.parentNode.insertBefore(js, fjs);\n}(document, 'script', 'facebook-jssdk'));&#lt;/script&#gt;&#lt;div class=\"fb-post\" data-href=\"https://www.facebook.com/HotSpringsPD/photos/a.473680625985178.113529.467735303246377/1537061456313751/?type=3\" data-width=\"552\"&#gt;&#lt;blockquote cite=\"https://www.facebook.com/HotSpringsPD/posts/1537061456313751:0\" class=\"fb-xfbml-parse-ignore\"&#gt;&#lt;p&#gt;It has been confirmed that Yell County Deputy Sheriff has been shot and killed in the line of duty this morning. Lt....&#lt;/p&#gt;Posted by &#lt;a href=\"https://www.facebook.com/HotSpringsPD/\"&#gt;Hot Springs Police Department&#lt;/a&#gt; on &#lt;a href=\"https://www.facebook.com/HotSpringsPD/posts/1537061456313751:0\"&#gt;Thursday, May 11, 2017&#lt;/a&#gt;&#lt;/blockquote&#gt;&#lt;/div&#gt;","type":"rich","version":"1.0","url":"https://www.facebook.com/HotSpringsPD/photos/a.473680625985178.113529.467735303246377/1537061456313751/?type=3","width":552}

Yuma Police Department:

Little Rock Fraternal Order of Police:

{"author_name":"Little Rock Fraternal Order of Police","author_url":"https://www.facebook.com/LittleRockFraternalOrderOfPolice/","provider_url":"https://www.facebook.com","provider_name":"Facebook","success":true,"height":null,"html":"&#lt;div id=\"fb-root\"&#gt;&#lt;/div&#gt;\n&#lt;script&#gt;(function(d, s, id) {\n var js, fjs = d.getElementsByTagName(s)[0];\n if (d.getElementById(id)) return;\n js = d.createElement(s); js.id = id;\n js.src = \"//connect.facebook.net/en_US/sdk.js#xfbml=1&version=v2.3\";\n fjs.parentNode.insertBefore(js, fjs);\n}(document, 'script', 'facebook-jssdk'));&#lt;/script&#gt;&#lt;div class=\"fb-post\" data-href=\"https://www.facebook.com/LittleRockFraternalOrderOfPolice/photos/a.193599290705670.47126.192136880851911/1376576215741299/?type=3\" data-width=\"552\"&#gt;&#lt;blockquote cite=\"https://www.facebook.com/LittleRockFraternalOrderOfPolice/posts/1376576215741299:0\" class=\"fb-xfbml-parse-ignore\"&#gt;&#lt;p&#gt;Our thoughts and prayers are with the Yell County Sheriff's Office as we mourn the loss of Lieutenant Kevin Mainhart. Lt. Mainhart was shot and killed conducting a traffic stop.&#lt;/p&#gt;Posted by &#lt;a href=\"https://www.facebook.com/LittleRockFraternalOrderOfPolice/\"&#gt;Little Rock Fraternal Order of Police&#lt;/a&#gt; on &#lt;a href=\"https://www.facebook.com/LittleRockFraternalOrderOfPolice/posts/1376576215741299:0\"&#gt;Thursday, May 11, 2017&#lt;/a&#gt;&#lt;/blockquote&#gt;&#lt;/div&#gt;","type":"rich","version":"1.0","url":"https://www.facebook.com/LittleRockFraternalOrderOfPolice/photos/a.193599290705670.47126.192136880851911/1376576215741299/?type=3","width":552}

El Cajon Police Department:

Austin, Arkansas Police Department:

{"author_name":"Austin, AR Police Department","author_url":"https://www.facebook.com/AustinARPolice/","provider_url":"https://www.facebook.com","provider_name":"Facebook","success":true,"height":null,"html":"&#lt;div id=\"fb-root\"&#gt;&#lt;/div&#gt;\n&#lt;script&#gt;(function(d, s, id) {\n var js, fjs = d.getElementsByTagName(s)[0];\n if (d.getElementById(id)) return;\n js = d.createElement(s); js.id = id;\n js.src = \"//connect.facebook.net/en_US/sdk.js#xfbml=1&version=v2.3\";\n fjs.parentNode.insertBefore(js, fjs);\n}(document, 'script', 'facebook-jssdk'));&#lt;/script&#gt;&#lt;div class=\"fb-post\" data-href=\"https://www.facebook.com/AustinARPolice/photos/a.1201353493288572.1073741828.1201098556647399/1371687439588509/?type=3\" data-width=\"552\"&#gt;&#lt;blockquote cite=\"https://www.facebook.com/AustinARPolice/posts/1371687439588509:0\" class=\"fb-xfbml-parse-ignore\"&#gt;&#lt;p&#gt;Our heartfelt thoughts and prayers go out to the Yell County, Arkansas Sheriff's Department as they cope with the loss of Lieutenant Kevin Mainhart Please remember his family and friends during this tragedy.&#lt;/p&#gt;Posted by &#lt;a href=\"https://www.facebook.com/AustinARPolice/\"&#gt;Austin, AR Police Department&#lt;/a&#gt; on &#lt;a href=\"https://www.facebook.com/AustinARPolice/posts/1371687439588509:0\"&#gt;Thursday, May 11, 2017&#lt;/a&#gt;&#lt;/blockquote&#gt;&#lt;/div&#gt;","type":"rich","version":"1.0","url":"https://www.facebook.com/AustinARPolice/photos/a.1201353493288572.1073741828.1201098556647399/1371687439588509/?type=3","width":552}

Port Authority Police Department:

NEA Dispatch:

{"author_name":"Dispatch NEA","author_url":"https://www.facebook.com/E911alerts/","provider_url":"https://www.facebook.com","provider_name":"Facebook","success":true,"height":null,"html":"&#lt;div id=\"fb-root\"&#gt;&#lt;/div&#gt;\n&#lt;script&#gt;(function(d, s, id) {\n var js, fjs = d.getElementsByTagName(s)[0];\n if (d.getElementById(id)) return;\n js = d.createElement(s); js.id = id;\n js.src = \"//connect.facebook.net/en_US/sdk.js#xfbml=1&version=v2.3\";\n fjs.parentNode.insertBefore(js, fjs);\n}(document, 'script', 'facebook-jssdk'));&#lt;/script&#gt;&#lt;div class=\"fb-post\" data-href=\"https://www.facebook.com/E911alerts/photos/a.1618589961748376.1073741828.1618579428416096/1874332149507488/?type=3\" data-width=\"552\"&#gt;&#lt;blockquote cite=\"https://www.facebook.com/E911alerts/posts/1874332149507488:0\" class=\"fb-xfbml-parse-ignore\"&#gt;&#lt;p&#gt;END OF WATCH: Deputy shot in Yell County is Lt. Kevin Mainhart. He served West Memphis for 20 years.&#lt;/p&#gt;Posted by &#lt;a href=\"https://www.facebook.com/E911alerts/\"&#gt;Dispatch NEA&#lt;/a&#gt; on &#lt;a href=\"https://www.facebook.com/E911alerts/posts/1874332149507488:0\"&#gt;Thursday, May 11, 2017&#lt;/a&#gt;&#lt;/blockquote&#gt;&#lt;/div&#gt;","type":"rich","version":"1.0","url":"https://www.facebook.com/E911alerts/photos/a.1618589961748376.1073741828.1618579428416096/1874332149507488/?type=3","width":552}

Guns and Hoses of North Texas:

West Memphis Fire Department:

Clarkstown Police Department:

Pima County Sheriff's Office:

North Little Rock Police Department:

New York Police Department Ceremonial Unit:

A candlelight vigil is planned for Thursday night at 6:30 on the Arkansas River in Dardanelle to honor Lieutenant Mainhart and the two others killed in Yell County today.