Gunmen kill schoolchildren on bus

Gunmen attacked a school bus in Pakistan, killing three children, a teacher and the driver.

Police said the bus was taking pupils home when the gunmen struck in Matani, close to the main city of Peshawar.

Matani has been the scene of a vicious struggle between Islamist militants with bases in the nearby Afghan border region and government-backed tribal armies.

The militants have attacked civilian targets in the area to punish its residents for not supporting them.