At least four people killed and eight others injured when an explosion occurred inside a mosque in Peshawar on Sunday morning, Pakistan Today reported.
According to initial reports, the blast took place inside Tehmaash Stadium Masjid.
The number of casualties are feared to rise as the area is one of the most crowded places of the city.
Police have cordoned off the area while the rescue teams are shifting injured and dead bodies to Lady Reading Hospital.
Eye witnesses terms it as a suicide blast, however, official sources have not confirmed the nature of the blast as yet.
This a developing story and will be updated accordingly.