(CNS) A portion of Mayor Antonio Villaraigosa's office at City Hall in downtown Los Angeles was evacuated today when a staff member opened letter that contained an unknown white powder.
Police and firefighters responded around 3:30 p.m. to the mayor's office on the third floor of City Hall and cordoned off the entryway.
Villaraigosa spokesman Peter Sanders said a letter was delivered to the office and it turned out to contain a white powder.
The employee who opened the letter apparently went to a nearby restroom, which was also blocked off by investigators. Fire crews were keeping the man inside the restroom while the investigation continued.
A hazardous materials team was called to investigate.