Six suicide bombers and a policemen were killed in an attack on a governor's office Wednesday in northern Afghanistan, an official said. "Six suicide attackers in police uniform entered the governor's office, one of them blew himself up inside the compound and five others were shot dead by police," said Abdul Kabir Waseq, spokesman for the governor of Panjsher province. A policeman was killed by the one who detonated his suicide vest, he was quoted as saying by DPA. "The terrorists attacked the governor's office at 4 am (1130 GMT), and the clash lasted three hours," Waseq said. The Taliban claimed responsibility in a mobile phone text message.