MINGORA, Sept 21: Four members of a family were killed on Sunday when they tried to tamper with an unexploded mortar shell near here.

Sources said one Shaider Lala had found the shell in a nearby field a few days ago. It is reported that children were “playing” with the shell when it went off, killing the man and his three children.

In Kabal tehsil, military authorities said they would lift on Monday the curfew which was imposed 20 days ago.

Meanwhile, a grid station was blown up in Aman Kot near Mingora on Sunday, disrupting power supply to the entire Swat district.