Police in northwestern Pakistan say a bomb has exploded in a popular market in Peshawar, wounding at least seven people.

Authorities said the explosives in Thursday's attack were packed in an oil canister.

No one immediately claimed responsibility for the blast, which damaged several nearby shops.

Peshawar is the capital of Khyber-Pakhtunkhwa province near the Afghan border, and has experienced numerous suicide and bomb attacks in recent years linked to the Taliban and al-Qaida.