Two explosions targeting Shi'ite mosques in Pakistan's tribal area on the Afghan border killed at least 15 people on Friday, a doctor and witnesses said.
The first explosion took place just metres away from a Shi'ite mosque near a busy market in Parachinar, capital of the tribal Kurram area. It was followed closely by a second blast, outside another mosque in the town.
Sabir Hussain, a doctor at the Agency Headquarters Hospital, said 15 dead bodies and 45 people with serious wounds had been brought to his hospital.
Taliban-linked insurgents are a main source of instability in nuclear-armed Pakistan, but sectarian violence by Sunni militants, who see Shi'ites as heretics, has also been growing.
Parachinar has a significant Shi'ite population, who have previously been attacked by hardline Sunni militant groups.