At least seven people were killed and more than 50 others were wounded after an explosion struck a religious school in Pakistan, police have said.
The attack took place in the city of Peshawar. Hospital official identified the dead between the ages 20 and 30.
The city of Peshawar, close to the Afghan border, has seen some of the worst of the violence during the Taliban insurgency in recent years.
Six years ago, gunmen stormed a military school in the city leaving more than 150 dead, including many children.
However, the number of attacks has greatly reduced over the years.
An eyewitness has told the police he saw a man enter the building with a bag of explosives shortly before the blast.
Assistant Inspector General of Police (AIG) Shafqat Malik told Pakistan’s Express Tribune newspaper that 5kg (11lbs) of explosives were used in the attack.
Pakistan’s Prime Minister Imran Khan has expressed “regret over the loss of precious lives”, strongly condemning the blast.