At least 17 people were killed in a suspected suicide bombing outside a police station in northwestern Pakistan on Sunday, a rescue group and a regional police official said, as the country battles widening insurgencies. The explosion took place in the Kabal area of Swat, a district in Pakistan’s Khyber Pakhtunkhwa province. The Tehreek-e-Taliban Pakistan militant group in a statement claimed responsibility for the attack. The rescue official said the death toll rose to 17 from 14 after three victims died in hospital. One of the dead persons was believed to be the suicide bomber, Fida Hussain, a regional police official, told Reuters.