Nine killed in US mass shooting

A public transit worker shot dead eight people at a California rail yard Wednesday before turning his gun on himself as police arrived, officials said after the latest mass shooting to hit the United States. 

Multiple victims were also wounded in the attack at the rail yard in San Jose, just south of San Francisco.

US President Joe Biden called the incident a "horrific tragedy" and ordered flags to be flown at half-staff. He urged Congress to take immediate action and heed the call of the American people to help end this epidemic of gun violence in America.

The suspect -- identified by multiple media outlets as Samuel Cassidy -- was an employee of the Valley Transportation Authority.

The shooter's ex-wife told the Bay Area News Group that Cassidy had "often spoke angrily about his co-workers and bosses, and at times directed his anger at her."