UPDATED at 12:10 p.m. Friday with information from police

ALTON • A man who was shot in the chest was taken to a hospital Thursday night after he walked into an Alton Casey's General Store and asked employees to call 911.

The man came into the store at 3499 Fosterburg Road just before 10:30 p.m.

Capt. T. Michael Dixon of the Madison County Sheriff's Department said the victim told police he had been shot in the area of Interstate 255 and Fosterburg Road. The man told officers he was the victim of a carjacking through a Craigslist posting, police say.

He was taken to a St. Louis hospital and is expected to survive, Dixon said Friday afternoon. Dixon said the police investigation continues; he declined to give any more details.

Gabriel Bennett, an assistant manager at the Casey's store, was there with two other employees when the injured man came in and said he'd been shot during a carjacking.

"He walked through the front door," Bennett said. "The guy was breathing really heavy, he was groaning and in pain."