Four people were shot dead in a shack in the Solomon Mahlangu informal settlement in Walmer, Gqeberha, during the early hours on Monday.
Police spokesperson Capt Sandra Janse van Rensburg said police were called to the scene between midnight and 1am, where they found the bodies of two men and two women inside the dwelling. They had been shot many times.
Preliminary investigations indicate one male and one female were found lying next to each other in the sitting room, while another male and female were found lying next to each other on a bed in the bedroom.