SWAT: One woman was killed and three others injured, in an explosion at a residence in Swat's Totanobanda area on Sunday.
The attack occured at the home of Civil Defence Committee Member, Mir Roshan Dada.
The injured have been shifted to the hospital.
According to DPO Swat Qazi Ghulam Farooqi, the explosion was caused by a hand grenade. He added that the reason behind the attack was personal enmity.
FIRs regarding the incident have been lodged against six suspects.