A 49-year-old motorcyclist was killed on Interstate 12 near Interstate 55 on Saturday after running into the rear of a moving car, State Police said.

Larry Seemann, of Osyka, Mississippi, was heading east on I-12 near I-55 around 12:45 a.m. when he hit the back of a car and flew off his motorcycle, said Master Trooper Greg Marchand, a State Police spokesman.

Seemann was pronounced dead at the scene. He was wearing a helmet, but it was not approved by the Department of Transportation, Marchand said.

Police are not yet sure whether intoxication was a factor in the crash.