Police: Bicycle bomb kills 5 in northwest Pakistan

A bomb rigged to a bicycle exploded in a northwest Pakistani city on Monday, killing at least five people and wounding 20 in the latest attack to rattle the volatile region.

The explosion occurred on a major road in Dera Ismail Khan, and most of the victims were either walking by the parked bicycle or traveling in nearby vehicles, area police chief Saeed Ullah said.

Taliban and al-Qaida militants are suspected in scores of attacks in Pakistan's northwest regions bordering Afghanistan. Dera Ismail Khan lies near the Waziristan tribal areas, which are insurgent strongholds and favorite targets for U.S. missile strikes.

But the rough and tumble city …