The joint Central and state police forces intensified their search operations on Sunday to nab the armed group, who killed two Assam Rifles personnel and injured five others, in Manipur's Bishnupur district, officials said. A police official said that security forces, comprising Assam Rifles and Central Armed Police Forces (CAPF) continued their massive search operation in Bishnupur and adjoining Thoubal, Noney and Imphal West districts to nab the perpetrators. One Maruti Van, suspected to have been used in the ambush, was recovered from Mutum Yangbi in the same Bishnupur district. The five injured Assam Rifles personnel are now under medical treatment at the Regional Institute of Medical Sciences (RIMS) in Imphal, the spokesman said, adding that they are currently stable. In the routine search operations, the security forces have arrested three militants belonging to different banned outfits, and an arms dealer from a different district.