A woman has been suicidal after being shot at the YouTube headquarters in San Bruno, California, after injuring three people.
The BBC reported that the condition of one 36-year-old among the injured is serious.
CBS News said he was the boyfriend of the attacker. Among the injured, two women and 32 were 27 years old.
The fog started to spread throughout the region at around 12.30 local time on Tuesday, the rush began.
The NBCR report said that suspected attackers came to the outskirts of the office and started shooting at the beginning of the lunch time.
San Bruno's Police Chief Ed Barbarini said at 12:48 local time, police officers went to the office to see the 'chaotic situation', many people were running away.
They first saw one of the bullets lying in front of the YouTube headquarters. A few minutes later, the body of a woman with a weapon was found, who was suspected of suicide
Later, two more were rescued and sent to the hospital, said Barbarini.
The police suspect that suicidal women carried out the attack. Police said they had carried out an attack on a pistol, but they did not say anything about the purpose of the attack. The identity of the woman is being confirmed.
The injured were admitted to San Francisco General Hospital in Zakirbarga.
Officials said 32-year-old women are serious but the 27-year-old condition is very good.
Barberini said that another person injured in ankle is being treated at the hospital while escaping.
According to the BBC, 1700 people work in YouTube's main office in California. YouTube's ownership is in the hands of Google.
Google has said that they have started investigating the firing incident. YouTube spokeswoman Chris Dell praised the police's actions.
Most of the events of this shoot in the United States have caused men According to a FBI report, there were only 160 cases of shooting in six cases from 2000 to 2013.