PESHAWAR, Pakistan (AP) -- Police say a powerful bomb has exploded at a bus terminal in the northwest Pakistani city of Peshawar, killing at least four people.
Police officer Afzal Khan says Thursday's attack also wounded 20 people. Most of the victims were passengers waiting to travel to other areas in the northwest. The blast also damaged several vehicles.
Peshawar is located near the border with Pakistan's tribal region and has experienced frequent bombings over the past several years. Violence has dropped in recent months, but attacks continue to occur.
No group claimed responsibility for the bombing. But the Pakistani Taliban have carried out similar attacks throughout the country.