A powerful bomb blast ripped through an Islamic seminary on the outskirts of the northwest Pakistani city of Peshawar on Tuesday morning, killing at least seven students and wounding 112 others, police and a hospital spokesman said.
The bombing happened as a prominent religious scholar during a special class was delivering a lecture about the teachings of Islam at the main hall of the Jamia Zubairia madrassa, said police officer Waqar Azim. He said initial investigations suggest the bomb went off minutes after someone left a bag at the madrassa.
TV footage showed the damaged main hall of the seminary, where the bombing took place. The hall was littered with broken glass and its carpet was stained with blood. Police said at least 5 kilograms of explosives was used in the attack, The Associated Press reported.
Several of the wounded students were in critical condition, and hospital authorities feared the death toll could climb further. Authorities said some seminary teachers and employees were also wounded in the bombing.
Initially police said the bombing killed and wounded children but later they said almost all of the students were in their mid-20s.
Shortly after the attack, residents rushed to the seminary to check up on their sons or relatives who were studying there. Many relatives were gathering at the city's main Lady Reading Hospital, where the dead and wounded students were brought by police in ambulances and other vehicles.
Some Afghan students studying at the seminary were also among the wounded persons, officials said.
Pakistani Prime Minister Imran Khan condemned the bombing and asked authorities to ensure the provision of best possible medical aid to the victims.
The attack comes days after Pakistani intelligence alerted that militants could target public places and important building, including seminaries and mosques across Pakistan, including Peshawar.
No one immediately claimed responsibility for the attack in Peshawar which is the provincial capital of Pakistan's Khyber Pakhtunkhwa province bordering Afghanistan. The province has been the scene of such militant attacks in recent years, but sectarian violence has also killed or wounded people at mosques or seminaries across Pakistan.