Washington DC. At least nine people have been killed in a shooting in San Jose, California.

It is understood that the person who fired indiscriminately in the incident at the Valley Transportation Authority railway yard was an employee of the same office. The assailants, identified as 57-year-old Samuel Cassidy, were employees of the office.

According to US media, he set fire to his own house before coming to the railway yard and firing. He set fire to his house and drove towards the office. When he reached the office, he fired indiscriminately.

It was not immediately clear how the attacker was killed, but he may have killed himself after killing others.

It is estimated that those killed in the incident were employees working with the attackers, but their details have not been made public. The media also reported that some more people were injured and some were in critical condition.