Authorities in northwestern Pakistan say a minibus - hit by falling rock - has plunged into a ravine, killing 15 people. Four others survived with injuries.

The authorities say the driver to lost control of the bus Sunday on the road to Mansehra from Balakot, a town devastated by last year's earthquake.

Landslides are common in the mountainous region, where the October 8 quake last year killed more than 73,000 people.

Some information for this report was provided by AFP, AP and Reuters.