KHAR, Pakistan - At least six people including two infants were killed by a roadside bomb in restive northwest Pakistan on Tuesday, officials said, as the military launched fresh air strikes targeting militant hideouts.
Pakistan's armed forces have been waging an assault to wipe out strongholds of Taliban and other militants in North Waziristan tribal area since June, killing more than 550 insurgents, according to the military.
The roadside bomb attack came in Salarzai area of Bajaur, another tribal region on the Afghan border which has recently been attacked by militants from across the frontier.
Officials said the dead included three women who were school teachers, and two of their infant children.
"According to initial reports, six civilians, including three lady teachers, two children and one passerby have embraced shahadat (martyrdom)," a security official said.
Local administration official Sohail Khan confirmed the incident.
Another official in Peshawar said that the van was carrying the women and their children to a local community school run by an aid group funded by international charities.
No group claimed responsibility, but Islamist militants hiding in the lawless border areas have carried out such attacks in the past.
Elsewhere in the tribal areas, the latest round of air strikes killed 18 militants and destroyed several of their hideouts, a statement from the military said.
"Five hideouts were wiped out in Khyber and seven were eliminated in North Waziristan," the statement said.
Pakistani jets and artillery began hitting rebel targets in mid-June to try to regain full control of the district and ground forces moved in on June 30.
Access to the areas where the offensive has been going on is strictly controlled, making it impossible to verify the number and identity of those killed in the fighting.
The assault by Pakistan's military was launched after a dramatic attack by militants on Karachi airport that killed dozens of people and marked the end of a faltering peace process with the Pakistani Taliban.