This is the terrifying moment a bomb exploded at a political rally held by the supporters of Maulana Fazlur Rehman in northwestern Pakistan.<br /><br />At least 54 people have been killed in the blast which happened on the outskirts of Khar, the capital of Bajor district in Khyber Pakhtunkhwa.<br /><br />Nearly 200 people, including children, were also injured. Some of those seriously wounded were airlifted to a hospital in the provincial capital, Peshawar.<br /><br />Footage from the scene also showed people being put into ambulances and the blast area being cordoned off, with emergencies declared at local hospitals.