Authorities in California are investigating an arson attack on the Chinese consulate Thursday.<br /> <br />Chinese officials say someone poured gasoline on the main gate of the building in San Francisco then set it on fire.<br /> <br />No one was injured, but consulate officials urged police to take the matter seriously.<br /> <br />SOUNDBITE (ENGLISH) SPOKESMAN FOR THE CHINESE CONSULATE-GENERAL IN SAN FRANCISCO WANG CHUAN SAYING<br /> <br />"We hope that the U.S. side takes all necessary measures to provide adequate protection for the Chinese consular personnel and properties, and brings the culprits to justice as soon as possible."<br /> <br />At the foreign ministry briefing in Beijing, Chinese government officials echoed the sentiment.<br /> <br />We urge the U.S. to carry out the investigation quickly, the spokesperson said.<br /> <br />The safety of diplomatic personnel and missions is a sensitive issue in China after the U.S. military accidentally bombed the Chinese embassy in Belgrade during air strikes against Serbia
