At least eight people were killed and about 40 injured in a blast at a Shia mosque in Pakistan`s southern district of Shikarpur on Friday, said a district police officer.

The mosque is located in Shikarpur`s Lakhi Dar area and the explosion occurred just after the prayers. A bomb disposal squad was dispatched to the area from Sukkur and rescue teams had reached Imam Bargah Maula Karballa where the explosion took place.

There is speculation that a suicide bomber may have carried out the explosion.