SAN BERNARDINO (CBSLA.com) — Two brothers were shot, one fatally, in San Bernardino Sunday evening.

The deceased is 22, his brother is 20.

Police believe a cousin of the brothers may have been responsible for the shooting.

The wounded brother was taken to Arrowhead Community Hospital in unknown condition. He was believed to have been shot in the back of the neck.

The shooting occurred in the 4000 block of Johnson Street, neat 41 Street.

The deceased died at the scene.

Authorities said the suspect fled in a brown or gold Mitsubishi. They later amended that statement to say family told them the suspect may have fled on a chrome bike.

San Bernardino police are handling the investigation.