PESHAWAR, Oct 15 — Twenty-one pupils and a teacher were killed yesterday after a roof collapsed at a school in the northwest Pakistani city of Peshawar, a hospital official said.

Asim Khan from Peshawar’s Lady Reading Hospital confirmed the toll to AFP, adding that over 30 people were injured, with six believed to be in a critical condition.

Pakistan’s Prime Minister Shehbaz Sharif in a statement expressed “deep sorrow and grief over the loss of precious lives”.

“The Prime Minister extends his condolences to the bereaved families and prays for them to have the strength and patience to bear this irreparable loss,” the statement said.