Police say militants have blown up a girls school and 10 shops in northwestern Pakistan. There were no casualties.

Police official Farman Khan said the attacks happened before dawn Friday in two separate areas of the troubled Swat valley.

Authorities in May signed a peace deal with militants in Swat, ending monthslong military operations against them.

The militants promised to halt attacks against security forces.

Violence has significantly decreased in Swat since then, but militants have returned from the mountains and reasserted their influence over parts of the valley and resumed attacks.

Some Islamic hard-liners are opposed to the education of women.