Facebook may have been the target of a sarin gas attack, according to a local news report, which said a machine at one of the social networking giant's mail sorting facilities warned of the substance.
NBC News Bay Area cited the Menlo Park Fire District saying a hazardous materials team is on the scene. Both NBC News Bay Area and KRON 4, said no employees were exposed, though initially there were indications two people may have been.
Facebook in a statement said a package delivered to one of its mail rooms was "deemed suspicious," without details. "We evacuated four buildings and are conducting a thorough investigation in coordination with local authorities," a Facebook spokesman said in a statement, adding that the substance has not yet been identified. "As of now, three of the evacuated buildings have been cleared for repopulation. The safety of our employees is our top priority and we will share additional information when it is available."
The possible attack at Facebook comes a year after a woman wounded three people during a shooting at YouTube's headquarters, about 20 minutes south of San Francisco. In that case, the person
Business Insider said an MPFD official said sarin was detected in a mail bag during a routine test, and that its detection may have been a false positive. So far, no one was showing symptoms of exposure.
CBS News confirmed that the Federal Bureau of Investigation is responding to Facebook's headquarters at the request of the hazmat team.
The Menlo Park Fire District, FBI and Facebook didn't immediately respond to requests for comment.
This story is developing…
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