Two Pakistani paramilitary soldiers were killed and two others wounded by a roadside bomb in the Mohmand tribal district on Sunday, dpa quoted a paramilitary spokesman as saying. The four men were returning to their check post in the Ziarat Killi area after fetching water from a stream when militants set off what was thought to be a remote-controlled explosive device. "Two soldiers were martyred and the remaining two were wounded," said Major Fazal-ur-Rehman, a spokesman for the Frontier Corps paramilitary force. Mohmand, one of Pakistan's seven tribal districts near the Afghan border, is adjacent to the Bajaur region, where a suicide bomber detonated his explosive vest near a security checkpoint on Saturday, killing 14 civilians and two soldiers. Militant violence has resurged in the tribal belt in recent months as the military launched multiple offensives in the country's troubled north-western region. The government has also been encouraging tribal militias to supplement anti-Taliban operations.