London 2012 organisers have apologised to the North Korean Olympic team following an embarrassing flag mix-up.
The flag of a rival nation was mistakenly displayed at their first sporting event of the Games.
The North Korean women's football team staged a protest ahead of their match with Colombia after the South Korean flag was wrongly shown on a big screen before kick-off.
The players walked off the pitch and refused to start the match at the scheduled 7.45pm start time.
They were persuaded to return to the field about an hour later at Hampden Park in Scotland when the sides were announced again with each player's face displayed next to the North Korean flag.
Afterwards, Games organisers LOCOG issued a statement apologising for the confusion.
It said: "Ahead of the women's football match at Hampden Park, the South Korean flag was shown on a big screen video package instead of the North Korean flag. Clearly this is a mistake.''
''We will apologise to the team and the National Olympic Committee and steps will be taken to ensure this does not happen again."
South Korea and North Korea have a far from harmonious relationship.
The countries were formally established as separate entities in 1948, and the Korean War began in 1950.
Only two years ago, North Korean artillery shells killed four people, two from the military and two civilians, on Yeonpyeong Island in South Korea.
North Korea eventually won last night's game 2-0.
