Bomb on bus kills 16 govt employees

At least 16 people were killed and more than two dozen wounded when a bomb blew up inside a bus in Peshawar, the main city of Pakistan's insurgency-wracked northwest, officials said, with the toll expected to rise.

No group has so far claimed responsibility for the explosion, which took place as the bus carrying mainly government employees was passing through the crowded shopping district of Saddar.

But Pakistan has been battling a homegrown insurgency for more than a decade, with groups such as the Pakistani Taliban routinely carrying out attacks as part of their struggle to overthrow the government.