At least six people have been killed, and dozens more injured after a series of blasts in the Pakistani city of Lahore struck processions of Shia Muslims.

"The three explosions took place at the end of a Shia mourning procession in Lahore city," AFP news agency quoted a police official as saying on Wednesday.

Other news reports said the three attacks were suicide bombings, although police had yet to confirm that.

Police said the death tolls was expected to rise.

Angry mobs reportedly set fire to a nearby police station after the attacks.

Source: Agencies