The sound of the vuvuzela could be lost from South African football grounds - although not because of the droning wall of noise that made it so unpopular with global audiences during the 2010 World Cup.

Premier Soccer League officials have said that although they are not yet pursuing a ban, it has become a topic of conversation after a rise in incidents where the vuvuzela was used to cause harm.

"Our rules ban all dangerous weapons from matches," the PSL general manager, Derek Blanckensee, told Reuters. "If the vuvuzela is to become a dangerous weapon then we will look into this."

Vuvuzelas were among a number of objects thrown at the Orlando Pirates coach, Roger De Sá, after his side were held to a draw by AmaZulu at the Moses Mabhida Stadium earlier this month.

One week later a supporter, angry at a red-card decision against his team, charged on the pitch and attempted to strike the referee with the plastic instrument during a league match between Lamontville Golden Arrows and Kaizer Chiefs in Durban.