Nine people were killed when gunmen opened fire at a bar outside Johannesburg early Sunday, police said, in the second such shooting in South Africa this month.

Ten more were wounded in the early morning attack at the tavern in the impoverished Bekkersdal township in a gold mining area around 40 kilometers (25 miles) southwest of the city.

It follows a shooting at a tavern near Pretoria on December 6 when gunmen killed a dozen people, including a 3-year-old child.