Fourteen people were killed and more than 70 injured when two Taliban suicide bombers attacked churches in Pakistan's Lahore on Sunday, sparking mob violence in which two other suspected militants died.

The bombings occurred during prayers at two churches, one Catholic and one Protestant, located about 500 metres apart in the city's Youhanabad neighbourhood, which is home to more than 100,000 Christians, officials said.

Up to 4000 then took to the streets of the eastern city, many armed with clubs, smashing vehicles and attacking a city bus station in a rare show of anger by the beleaguered minority.

Dr Mohammad Saeed Sohbin, medical superintendent of the General Hospital, told AFP: "We have received 14 dead bodies and 70 injured," adding that the figure did not include the suspected militants who were lynched or the bombers.