DAYTON, Texas - A prayer service will be held on Saturday for a Liberty County Sheriff's deputy who was critically injured while directing traffic on Wednesday.

The prayer service will be held at St. Stephens Episcopal Church in Liberty at 6 p.m.

Liberty County Pct. 1 Constable Justin Johnston is still in critical condition in ICU after the accident near Dayton on Wednesday evening.

Deputies say Constable Johnston was directing traffic with six other officers when a driver ignored barricades and hit him. Johnston was taken from the scene by Life Flight to Memorial Hermann Hospital.

He was taken into brain surgery Wednesday evening with brain bleed.

The incident happened around 5 p.m. Wednesday along Highway 146 at FM 1413, between Dayton and Mont Belvieu.

Johnston had stopped southbound traffic to let cars out of a nearby parking lot when a red pickup truck drove along the shoulder and plowed through barricades.

The constable was hit as the truck spun out of control, officials at the scene said.

"All of (the officers) had their vehicles on with their emergency lights on. There's no way on Earth that no one could've missed those emergency lights flashing." said Captain Ken DeFoor with the Liberty County Sheriff's Office.

Johnston and the driver in the pickup truck were taken to the hospital after the accident. Deputies said a 7-year-old child was also in the truck at the time.

The child sustained minor injuries. The driver's injuries are unknown at this time. Officers said charges are pending for the driver.

Liberty County Sheriff's deputies lined up in front of the hospital Wednesday night to show their support for Johnston.

A fund has been set up to help Johnston's family pay for medical expenses. Anyone wishing to donate can make donations to the "Justin Johnston Benefit Fund" at any Prosperity Bank.

The Constable's family sends their gratitude for the many prayers, calls of concern and well wishes from the public.