At least 15 militants were killed by Afghan security forces in a military operation in Baghlan province, an official said on Saturday."At least 13 militants were also injured in Baghlan-e-Markazi district since Friday morning," Xinhua news agency quoted the official as saying.Baghlan-e-Markazi is a district in Baghlan province of Afghanistan with Pul-e-Khumri as its capital, 160 km north of Kabul.Many villages were also liberated from Taliban clutches, the official added.The official did not comment if there were any casualties among the security personnel.The deputy to the provincial police chief said no security personnel was hurt over the past 24 hours.Taliban insurgents have been wiped out from some 10 villages, the official said.The Taliban have not made any comment yet.