A powerful blast killed at least five people and injured 20 others during Friday prayers at Madrassa-e-Haqqania, Akora Khattak, in Nowshera district of the restive Khyber Pakhtunkhwa province, police said.

Khyber Pakhtunkhwa Chief Secretary Shahab Ali Shah confirmed the death of caretaker of the madrassa and Chief of Jamiat Ulema Islam (Sami Group) Hamidul Haq Haqqani in the blast.