Islamabad, Pakistan (CNN) -- A suicide bomber attacked a convoy of Pakistani security forces and a local peace committee on Saturday in the country's northwestern tribal region, killing one soldier and four civilians, officials said.
Seven others were injured in the attack, including two soldiers and five civilians.The incident occurred in the town of Sarlarzai in the Bajaur district, according to Aslam Khan, a Bajaur government official.
Khan said the likely target was the Bajaur Peace Committee, a local pro-government and anti-Taliban militia. The group had been traveling back to their homes after attending a meeting.
It was under the protection of security forces when it was attacked by a suicide bomber on foot.
In December, a young, female suicide bomber was behind a blast in Bajaur district that killed 46 people and injured 105 others at a food distribution point.
The Pakistani Taliban later claimed responsibility for that attack.
The area is one of the seven districts of Pakistan's tribal region bordering Afghanistan.