At least three people are dead and 14 others injured after a bomb exploded outside a Shia mosque in the north Pakistan city of Rawalpindi, officials said.

"We have three bodies and 14 wounded people at our hospital," Asif Qadir Mir, chief of the local government hospital, told the AFP news agency.

The explosion occurred in the Gracy Lines neighbourhood as worshippers prayed inside the mosque on Tuesday, senior police official Akhtar Laleka said.

There has been a rise in sectarian violence in Pakistan following deadly clashes between Sunni and Shia Muslim groups near Islamabad in November.

Source: AFP