Correctional Services spokesman Manelisi Wolela has denied allegations that student leader Mcebo Dla.
WORLD Cup organisers are aware of complaints about the incessant tooting of the vuvuzela horns and are evaluating the situation on a day-to-day basis while encouraging the fans to sing.
Chief organiser Danny Jordaan told the BBC yesterday they were doing their best to control the situation but were not fully ruling out a vuvuzela ban either.
"We've tried to get some order. We did ask them (to use) no vuvuzelas during national anthems, no vuvuzelas when anyone is making an announcement or talking. I know it's difficult but we try to manage as best we can," Jordaan said.
"We've heard from the broadcasters and others. It's something that we're evaluating on an ongoing basis."
Asked whether a ban was possible, he said: "If there are grounds to do so, yes." He named throwing the instruments on to the pitch as one possible reason to ban them.
Jordaan's sentiments appear to echo those of many South Africans who defended the vuvuzelas a year ago but are now falling out of love with them. He said on a personal note that he prefers the singing in a football stadium - a tradition in most parts of the world that has not been heard so far in South Africa because of the vuvuzelas. "I prefer singing. It's always been a great generator of wonderful atmosphere in the stadiums and we will try encouraging people to sing.
"All through our history our ability to sing really inspired and showed emotion. In the days of the struggle (against apartheid) we did not blow anything, we were singing," he said.
Broadcasters are said not to be happy and world footballer of the year Lionel Messi was among the latest players to complain about the vuvuzelas after Argentina's 1-0 victory over Nigeria on Saturday.
"It is impossible to communicate, it's like being deaf," Messi said.
France playmaker Yoann Gourceff has blamed the vuvuzelas as one reason for their poor 0-0 draw with Uruguay and his captain Patrice Evra said he has been woken up by vuvuzelas at 6am.
But Evra also told French television that "the trumpets are a tradition in the country (South Africa). You can't start criticising them now".
Fifa boss Sepp Blatter has also defended the vuvuzelas. - Sapa-DPA