An employee fatally shot nine people at a California train yard before turning the gun on himself as police closed in.

The shooting took place at the Santa Clara Valley Transportation Authority (VTA) site in San Jose.

The victims, named early on Thursday, include transit employees. No motive for the attack has been established.

It was the California Bay area's deadliest mass shooting since 1993, when eight people and a gunman died in a San Francisco skyscraper.

Across the US, there have been 231 mass shootings so far this year, according to the Gun Violence Archive. A mass shooting is defined by the group as a crime in which four or more people are fatally shot.

Law enforcement officials told CBS news_copy, the BBC's partner in the US, that the suspected gunman in this latest incident was 57-year-old Samuel Cassidy.