ISLAMABAD, Sept. 23 (Xinhua) -- Pakistan's security forces have killed some 50 militants in northwestern Pakistan's Bajaur tribal region in the past two days, said an army spokesman on Tuesday.

    The security forces, backed gunship helicopters, bombed hideouts of local Taliban militants in different parts of the restive Bajaur agency, the spokesman Major Murad Khan told reporters.

    The military operation, starting on Aug. 6, has killed more than 100 militants. Some security forces personnel and civilians were also dead during the seven-week fighting.

    Fresh fighting erupted early Tuesday when the security forces engaged with the militants near Khar, main town of Bajaur agency, reports said.