At least 12 people have been killed after a police station in northwestern Pakistani came under attack from suspected Taliban fighters. Three explosions sent plumes of smoke into the air at the Kolachi police station in the Dera Ismail Khan district during the assault, which prompted a standoff on Saturday. Ten policemen were killed and another five wounded in the assault. Two of the attackers were also killed. Ahsanullah Ahsan, a spokesman for the Tehreek-e-Taliban Pakistan, told the Associated Press that his group was claiming responsibility for the attack. Ahsan said the TTP had sent two attackers, one of them a woman. He said the attack was partly aimed at avenging the raid by US special forces that killed Osama bin Laden, the al-Qaeda leader, on May 2. Dera Ismail Khan is located just outside of the South Waziristan tribal agency in Pakistan's Federally Administered Tribal Areas (FATA).