SEOUL: South Korea is preparing a formal complaint to the Asian Football Confederation against Muscat and Oman for their failure to control supporters during last week’s London 2012 Olympic Games football qualifying tie  in Muscat.

South Korea’s under-23s won 3-0 to qualify for London but the game was marred by crowd trouble as fans hurled water bottles and other objects onto the pitch. Trouble erupted after South Korea’s third goal midway through the second half. Midfielder Han Kook-young collapsed after being struck by a firecracker.

A statement from the South Korea association claimed: “This is a clear-cut case and we expect some sort of penalty. If that doesn’t happen we will ask the Asian Football Confederation (AFC) to punish Oman.”

Victory meant the South Koreans qualified for the Games for the seventh successive time.

** South Korea has cancelled this year’s K-League Cup competition among changes to avert a repeat of last year’s match-fixing scandal.