Al-Azhar, the Sunni Muslim world’s top religious institution, reiterated in a statement on Friday evening its rejection of all forms of violence and terrorism that target places of worship.

It also offered its condolences to the Afghan people and the families of the victims, wishing the injured a speedy recovery.

The attack against the Khalifa Aga Gul Jan Sunni mosque in eastern Kabul, which came in the form of an explosion,  killed and injured more than 50 worshippers after the last Friday prayers of the Islamic holy month of Ramadan.

The source of the explosion remains unidentified, and no one has claimed responsibility for the blast as of yet.

The explosion is the latest in a series of  relentless terrorist attacks across the Sunni-majority country against civilians and mosques, both Shia and Sunni, some of which have been claimed by Islamic State (IS).

IS has been stepping up its attacks across Afghanistan to become the primary enemy of the Taliban since their takeover of the country last August.