( CNN ) -- The FBI is investigating an arson fire at the Chinese consulate in San Francisco , an incident that has China 's diplomats calling on the United States Thursday to `` take all measures to provide adequate protection . '' There is no indication the fire was an act of terrorism , FBI spokesman Peter Lee said . According to a statement released by the consulate , footage from surveillance cameras shows the fire began Wednesday night after a person emerged from a parked mini-van , poured two buckets of gasoline on the front door of the consulate and ignited it . `` We strongly condemn this despicable attack , '' Wang Chuan , the consulate spokesman , told reporters during a news briefing outside the consulate . `` We urge the U.S. side to take all necessary measures to provide adequate protection for Chinese consular personnel and properties . '' Chuan characterized the fire as a `` violent crime '' that not only targeted the consulate but also its employees and residents living nearby . There were no injuries reported in the fire , though a small number of employees were in the building when it began , Chuan told CNN affiliate KGO . Surveillance video obtained exclusively by CNN affiliate KTVU appears to show a person standing in front of the consulate . Then seconds later on the grainy video , there is a ball of fire that erupts in front of the building , and the person can be seen walking to vehicle parked only a few feet away . The vehicle then drives off . There have been no claims of responsibility for the attack , and the United States is not aware of a specific threat made against the consulate , State Department spokeswoman Marie Harf said . `` We take this incident very seriously , '' Harf said , adding that the United States is `` deeply concerned '' about the reported attack . CNN 's Evan Perez and Jill Dougherty contributed to this report .
NEW : Video obtained by KTVU shows a ball of fire erupting in front of the embassy . Video shows a person throwing what appears to be bags of gasoline , embassy officials say . No injuries have been reported . ` ` We strongly condemn this despicable attack , '' Wang Chuan , the consulate spokesman , said .