PEORIA — Two people were reportedly taken to the hospital for serious injuries after the convertible they were in flipped over and landed upside down while headed west on Interstate 74, officials said Monday night.

The accident happened at about 6 p.m. in the westbound lanes just before the Murray Baker Bridge, said Lt. Bobby Zimmerman of the East Peoria Fire Department. The car flipped over and skidded several feet before coming to rest, according to police radio traffic at the time.

Zimmerman said two people had to be extricated from the vehicle and then his department transported them to OSF HealthCare St. Francis Medical Center with "Level 1 Trauma" injuries. He didn't know their conditions later in the evening.

Battalion Chief Mike Hughes of the Peoria Fire Department said his personnel assisted the East Peoria firefighters with the accident. Hughes said the two people, a husband and a wife, appeared to suffer "serious" injuries.

The crash caused traffic to snarl on the westbound lanes and cars were diverted off the interstate. The eastbound lanes were also slowed.

Zimmerman said the Illinois State Police was investigating the cause of the accident.