Police in Pakistan say at least 30 people were killed and more than 40 wounded in a bomb blast in the east of the country.
It is reported that a suicide bomber set off a device in a Shi'ite mosque in the city of Sialkot.
The explosion happened during Friday prayers when the mosque was packed with more than 1,000 worshippers.
A second bomb weighing around 5kg was found in a briefcase at the scene and was defused by a bomb disposal squad.
Several hundred angry Shi'ites rampaged through Sialkot after the explosion.
The mob set fire to a petrol station and two police vehicles and hurled stones at buildings in the neighbourhood, police said.
Sialkot is around 170km southeast of Islamabad on the border with India.