Pakistan Army Chief General Raheel Sharif on Monday ordered special combing operations after a powerful explosion in a Quetta hospital left at least 63 people dead.

Gen Sharif told intelligence agencies to initiate "special combing operations to target those involved in terror attacks", a spokesperson for the military said.

The army chief earlier chaired a high-level meeting that was attended by Balochistan Chief Minister Abdul Malik Baloch and the Commander of the Southern Command.

Inter-Services Public Relations (ISPR) quoted the army chief as saying that the bombing was specially targeted at the China-Pakistan Economic Corridor (CPEC).

Gen Sharif also visited the injured at the Civil Hospital. Critically injured individuals were shifted to the Combined Military Hospital (CMH).

The ISPR said the injured were also being flown to Karachi.