An attack at a northwestern Pakistan mosque during Friday prayers carried out by a suicide bomber has left at least 30 people dead, a government official said.
Upper Dir district coordination officer Atif-ur-Rehman said many more were wounded in the blast.
The attack is part of a wave of violence along the Afghan border in recent days just as the army says it is close to defeating Taliban militants in the Swat Valley.
No group immediately claimed responsibility for the mosque blast.
