Singapore advanced Sunday to the Tiger Cup final with a 4-2 victory in extra-time over Myanmar in an ill-tempered match that saw three Myanmar players shown red cards and some of their supporters arrested for an attempted pitch invasion.

AFC general secretary Peter Velappan, in a letter to the ASEAN Football Federation (AFF), said they were upset with the poor sportsmanship.

"We are also extremely displeased with the attitude of the players as well as the Myanmar team officials," he said, urging the AFF to ensure that remaining teams in the competition uphold and respect the rules of fair play.

The AFC has also requested the AFF to submit a report on the organisation of the Tiger Cup following claims of poor security at Jakarta's Senayan Stadium during the December 28 semi-final between Indonesia and Malaysia, and match fixing allegations during group matches in Vietnam.