"Of course the people are angry," International Olympic Committee (IOC) member Chang told Reuters television . "If your athlete got a gold medal and put the flag probably of some other country, what happens?"
The match against Colombia at Glasgow's Hampden Park on the first day of action at the London Olympics on Wednesday, two days before the opening ceremony, was delayed by more than an hour.
North and South Korea have been bitter enemies since the 1950-3 war. They have also been drawn against each other in the first round of the men's table tennis.
British Prime Minister David Cameron called the incident an honest mistake and said he was sure there would be no repetition .