Srigar, June 23: At least three militants were killed on Thursday in an encounter with security forces in Jammu and Kashmir’s Kupwara district. A defence source said here that security forces began a search operation after they received specific information about the presence of militants in forests of Lolab. The militants who were hiding there fired upon the forces, triggering a gunbattle. The official added that the operation was still going on. (IANS)