A motorcycle bomb exploded in the north-western Pakistani city of Peshawar on Sunday morning, killing two people and severely injuring another, police said.

The vehicle was packed with 9-11lb (4-5kg) of explosives when it detonated in the Board Bazaar area of Peshawar, said Kashif Abbasi, senior superintendent of police operations in Peshawar.

There was no immediate claim of responsibility, and it is unclear if the blast was intentional.

Peshawar is the capital of Khyber Pakhtunkhwa province, which is a former stronghold of the militant Pakistani Taliban group, also known as the TTP.

The city has seen several deadly attacks in recent years.

Prime Minister Shehbaz Sharif offered prayers for the victims.

“We are fully determined to root out terrorism,” he said, according to a statement from his office.