Afghan officials say the latest Taliban strike in the capital, Kabul killed a South African father and his two children.
Sapa reports that the city's police chief resigned after at least nine militant attacks in two weeks.
As the US-led NATO war against the Taliban nears its end, the insurgents have targeted foreign compounds, embassy vehicles, US troops and a female Afghan member of parliament.
General Mohammed Zahir stepped down shortly after he confirmed that three South Africans and an Afghan citizen were killed in a Taliban attack on a foreign compound on Saturday evening.
Earlier, the department of international relations said it could not confirm the incident, and was following up on the reports.
Spokesperson, Clayson Monyela said it would be difficult to get information, as it was weekend.
