SWAT - Unidentified miscreants hurled a hand grenade at the house of a lady police constable on Thursday in Qambar area of district Swat. However, the lady constable along with her family members remained unhurt, but the house was badly damaged. According to details, house of a lady police constable, Neelum, was damaged when unidentified miscreants threw a hand grenade on her house. The hand grenade exploded, cracking some of the walls and smashing the windowpanes of the house. Police registered a case and started investigation. It may be recalled that around three weeks ago, police defused a bomb also planted adjacent to the house of the said female constable.