"It is very unfortunate that another innocent boy got killed leaving another family in trauma. We condemn such acts and express our heartfelt solidarity with the bereaved family," Mehbooba said in a statement.
She said the killing of innocent civilians only fuels alienation and the security forces must exercise restraint and differentiate between a militant and a commoner, including the family members of the militants, while dealing with such situations.
"Unfortunately such incidents only add to the unending tragedies of Kashmiris and bringing miseries to the affected families," she said, adding that time has come to end this "senseless blood-letting" and work for the larger goal of ensuring peace and stability in the state.
Khalid Muzaffar was yesterday killed in an encounter with security forces in forests of Tral area in south Kashmir's Pulwama district, sparking protests by local residents who claimed he was a civilian.