Two boys, aged 12 and 13, have been detained for allegedly throwing the stones.
The goal.com website reported the incident from Wednesday’s friendly at FNB Stadium. The stone appeared to be thrown by a South Africa supporter at Mweene, who plays club football in South Africa.
The Zambian Football Association tweeted in the early hours of Thursday morning: “Very sad that Zambian bus was stoned and Kennedy Mweene sustained a head injury. Has had stitches and is ok, but the incident was shameful.”
Mweene is the Zambian team’s goalkeeper and also plays for the Free State Stars in South Africa.
The South African Football Association are investigating the incident.
“I have spoken to our events director and they will be investigating,” Safa spokesman Dominic Chimhavi told Sapa.
Africa Cup of Nations champions Zambia won the game against Bafana Bafana 1-0. Further details on the attack were not immediately available.
The incident was a further embarrassment for South African football ahead of their hosting of the African Cup of Nations early next year after the national team was outplayed by Zambia at the country’s showpiece stadium.
The pitch at FNB Stadium, which will host the opening game and the final at the championship, was in a poor state following a rock concert there at the weekend. – Sapa-AP