A female suicide bomber blew herself up near a school in the northwestern city of Peshawar on Tuesday, police said, in Pakistan's first known case of a suicide attack by a woman. The woman was killed, but there were no other casualties, according to police officer Ashraf Khan. She was walking near a school and a military checkpoint when explosives strapped to her body went off, killing her instantly, Khan said. Peshawar police chief Tanveerul Haq Sipra told reporters at the scene that an initial examination of the woman's remains indicated she may have been in her 30s. «It is premature to say what may have been her target,» Sipra was quoted as saying by the Associated Press.