Dozens dead in Pakistan blast

At least 52 people have been killed and 150 injured in a series of explosions in northern Pakistan, officials say.

The blasts are believed to have been caused by explosives used for road building, which were stored in the home of a local contractor.

…The explosions occurred in a remote village in Diamir district - about 200 kilometres (124 miles) from the town of Gilgit, some 240 km (150 miles) north of the capital, Islamabad.
>> BBC News

The explosion appears to be an accident.