LA MIRADA — A motorcyclist died Wednesday after colliding with a van on Valley View Avenue, authorities said.

The name of the motorcyclist was not released pending positive identification and notification of his family members, Los Angeles County sheriff’s Lt. Bill Evans said. He was initially described as a man in his 50s and believed to be a Whittier resident.

The crash was reported about 8 a.m. on Valley View Avenue at Bora Drive, the lieutenant said.

Rescuers took the injured motorcyclist, who was unresponsive, to the University of Southern California, Irvine, Medical Center for treatment, Evans said. He died from his injuries as 9:08 a.m.

The motorcycle was southbound on Valley View Avenue when it collided with the van, which was making a left turn from eastbound Bora Drive to northbound Valley View Avenue, Evans said.

The motorcycle was traveling at an estimated 15 to 20 mph when it struck the van broadside, he added.

The cause of the crash remained under investigation, however no crime was initially suspected.

Evans said the driver of the van, a woman in her 30s, was unhurt and cooperated with investigators.

Anyone with information is asked to call the sheriff’s Norwalk Station at 562-863-8711.