3 killed in crash involving wrong-way driver on 91 Freeway in Riverside

RIVERSIDE, Calif. (KABC) -- At least three people were killed in a crash involving a wrong-way driver on the 91 Freeway in Riverside, forcing the closure of several lanes Thursday morning.

The incident unfolded around 2 a.m. near 14th Street, according to the California Highway Patrol.

The agency says a driver was going eastbound in the westbound lanes just before the crash happened. Three vehicles - a white SUV, a black BMW and a big rig - were involved but it's unclear which one was going the wrong way.

A witness reported seeing a driver speeding in the wrong direction on the freeway before the collision.

Officers arrived to find lifeless bodies inside the BMW. A fourth person was taken to the hospital in unknown condition.

Several westbound lanes were closed, as well as the on-ramp at 14th Street following the crash.

The incident remains under investigation.

DEVELOPING: We will add more details to this report as they become available.