Police in San Leandro on Monday confirmed that a deadly collision between an Amtrak train and a motorcycle happened after a large group of motorcyclists lifted a railroad crossing arm, allowing the rider onto the tracks tracks when the collision happened.

One person died and another injured in a motorcycle-train collision in San Leandro involving a group of bikers.

A passenger on a motorcycle died after being hit by a train when other motorcyclists lifted railroad crossing arms to pass through, California police reported. The closed crossing arms stopped a group of about 100 motorcyclists at about 2 p.m. Sunday, Feb. 23, police said in an email to McClatchy News.