At least 12 people are dead and others injured after a tour bus carrying several American tourists flipped over on a highway in Mexico, according to media reports.
Twenty-seven passengers from two Miami-based Royal Caribbean cruise ships, the Celebrity Equinox and Serenade of the Seas, were on board the bus when it overturned on a two-lane highway.
"Our hearts go out to all those involved. We are doing all we can to care for our guests, including assisting with medical care and transportation," the company said.
In addition to the dead, at least nine others were injured, including seven Americans and two citizens of Sweden, according to the Associated Press.
The tour bus was heading to the ruins at Chacchoben, about 110 miles south of Tulum.
In addition to the tourists, a guide and driver were aboard the bus.
The news from Costa Maya about a bus accident involving #CelebrityEquinox & #SerenadeoftheSeas guests is heartbreaking. Our hearts go out to all those involved. We are doing all we can to care for our guests, including assisting with medical care and transportation.— RCLcorp (@RCLcorp) December 19, 2017
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Footage and photos from the crash show bodies on the pavement and side of the road as others, including some wearing bathing suits, help the wounded.
The images show the bus on its side along the shoulder of the road and yellow crime- scene tape surrounding the area as first responders investigate.
Chris Brawley of Haslet, Texas, says he didn't see the accident, but his bus of tourists came upon the scene minutes after the crash.
He says a convoy of buses was carrying people from the cruise port at Mahahual and heading to Chacchoben. He says they had been driving about 35 to 40 minutes before the accident.
Brawley says the sky was clear and the road was dry, and he did not see any other vehicles involved.
"The bus clearly lost control somehow as there were swerve marks all over the road surface," Brawley said.
Check back for updates to this breaking news story.