NEWARK -- A suicidal man is undergoing a psychiatric evaluation after he lugged a couch onto railroad tracks Tuesday, sat down and waited for the train to hit him, police said.

Officers were called just before 4:40 p.m. to the intersection of Cedar Boulevard and St. Isabel Avenue after a passer-by reported seeing a man with a handgun walking on the tracks, said Cmdr Mike Carroll.

The witness told police he noticed the man behaving strangely near the Union Pacific Railroad line, Carroll said.

When officers arrived, they found the man sitting on the brownish-beige couch. He told them he was waiting for the train to come and kill him, police said.

The officers called Fremont police for back up then called Union Pacific officials, who stopped trains along that line, Carroll said.

After about 40 minutes of tactical set up and some negotiating, the man surrendered to police, Carroll said.

A pellet gun was found nearby him, Carroll said.

Officers detained him and transported him to a local psychiatric facility for a 72-hour evaluation.

Contact Natalie Neysa Alund at 510-293-2469. Follow her at Twitter.com/nataliealund.