A roadside bomb wounded five paramilitary soldiers on patrol in Pakistan's restive North Waziristan tribal region today.
Violence intensified in the region bordering Afghanistan after militants scrapped a peace deal with the government two weeks ago.
The remote-controlled bomb struck a vehicle carrying the soldiers in the Dosali area, some 40 kilometres south of Miranshah, North Waziristan's main town.
After the explosion, a local official said he saw several helicopter gunships circling the area.
The attack happened hours after two rocket attacks on a security post in a nearby town late on Sunday night.
Pakistan's Waziristan region has long been regarded as a safe haven for al-Qaeda and Taliban militants sheltered by militant ethnic Pashtun tribesmen.
