At least 10 militants were killed and 12 others arrested in an operation carried out by security forces in Pakistan's Balochistan province on on Saturday, a media report said.According to Dunya TV, the security forces launched the operation after receiving an intelligence tip-off of presence of suspected militants in Sangan area of Sibi district, Xinhua reported.The forces raided three camps of the militants who opened retaliatory fire, engaging the troops into a gun-battle in which 10 insurgents were killed and 12 others surrendered.The report added that the troops also recovered hundreds of bombs, rocket launchers and other explosive materials from the militant camps.Three among the killed militants were members of outlawed outfit Tehreek-i-Taliban Pakistan who were plotting terrorist activities in the province, it added.The arrested militants have been shifted to some unknown place for investigations.