A Halloween bike ride in Southern California turned deadly when a car tore through a pack of riders and kept going.

Two people were killed. One rider was pulled along under the car for more than a mile.

What happened on Saturday night

The crash happened at about 10 p.m. Saturday in Montclair, California. Roughly 30 cyclists were out together for a Halloween ride.

People living nearby said the riders looked like a group of young men. Some may have been teenagers. Witnesses say a gray Honda plowed into them.

Two lives lost

A man of 25 died. A woman of 30 was rushed to a hospital where she later died of her injuries.

The rider who was dragged ended up in a residential neighborhood. It was not immediately clear whether that person was one of the two who died.

Photos taken at the scene showed bicycles scattered across the street. One of the victims lay under a blanket.

A suspect in custody

Police later announced the arrest of Valentin Alberto Rodriguez.

He was booked on suspicion of driving under the influence plus felony hit-and-run. He also faces suspicion of gross vehicular manslaughter while intoxicated.

The names of the victims have not been released.