More than 100 militants and nine Pakistani soldiers were killed in fierce fighting over the last four days in the tribal region of Bajaur, a military spokesman said on Sunday. Bajaur, near Pakistan's border with Afghanistan, is a known sanctuary for Al-Qaeda and Taleban militants. The clashes broke out on Wednesday after pro-Taleban militants attacked a security check post in Loi Sum, about 12 km (eight miles) west of Khar, the main town of the region. “Fighting is still continuing and forces backed by helicopter gunships are targeting militants' positions mainly on the mountains. We have reports of over 100 militants dead,” said a spokesman for Pakistan's Frontier Corps. Nine soldiers also died during the fighting, he said. Residents said Pakistani troops were bombarding the militants' hideouts and positions with mortar and artillery and many villagers had fled to safer places in the region. The security situation across Pakistan's northwest has deteriorated in recent weeks amid mounting pressure by Western allies on the South Asian nation to stop militants from making cross-border attacks on their troops in Afghanistan. Violence had subsided after a new coalition government formed following February elections and led by the party of slain former prime minister Benazir Bhutto started talks with the militants through tribal elders.