Karachi: One person was killed and two others injured in hand grenade attack on a house in Manghopir area on Thursday. Police said unidentified miscreants riding motorcycles reached Mashki Para area in the limit of Manghopir Police Station and resorted indiscriminate firing. Later, they lobbed hand grenade at a house, killing 32-years-old Salahuddin s/o Imam Bux on spot. However, Muhammad Rizwan and Nadeem were sustained injuries in incident. The body and injured were rushed to Abbasi Shaheed Hospital. Police said the incident might be part of ongoing conflict between Lyari gangsters which has spread to other part of city.