A motorcycle collided with a car Sunday night on Atlantic Boulevard near Johnston Avenue, according to the Jacksonville Sheriff's Office.

All westbound lanes of Atlantic Blvd. were shut down for an extended period of time due to the crash.

The accident happened around 7 p.m. The motorcyclist was transported with life-threatening injuries. The driver of the other vehicle was not injured.

JSO said they don't know if the motorcyclist was speeding.

Stay with First Coast News for more on this developing story.