|Senzo Meyiwa....Pic: Sky news|
Senzo Meyiwa, 27, was killed after two armed men entered the house in the Vosloorus township near Johannesburg on Sunday evening while an accomplice waited outside, police said.
Seven people were believed to have been inside the house, including Meyiwa, when the suspects forced their way into the property.
Police said Meyiwa was shot after a row, and the assailants fled.
South Africa's police force tweeted: "There was an altercation and Senzo Meyiwa was shot. The three suspects fled on foot after the shooting.
"We can assure South Africans that we will do all we can to bring Meyiwa's killers to book."
A reward of 150,000 rand (£8,500) has been offered for information leading to an arrest.