Officials in northwestern Pakistan say a roadside bomb blast has hit a van, killing 14 people, including two children.

Authorities say at least 10 passengers were wounded in the explosion Sunday in the Lower Dir tribal area near the Afghan border.

Police officials say the bomb was detonated by remote control.

Officials say they do not know who set off the bomb, but insurgent attacks are common in the country's remote tribal regions where militants from both Pakistan and neighboring Afghanistan are active.