PLEASANTON (KRON) — A bicyclist was killed Thursday morning in a collision in Pleasanton, police said.

The collision was reported at 7:07 a.m. at Stanley Boulevard and Bernal Avenue, according to police.

An adult bicyclist was killed, authorities said.

The driver of the vehicle in the collision stopped and is cooperating with police.

The intersection will be closed for an extended amount of time. Police are rerouting traffic around the scene of the collision.

Further details are unavailable at this time.