Players left the pitch after the South Korean flag was shown next to players' names in a build-up package, and the team's coach insists they would not have played if unresolved
As a result of the mistake in the video package, the entire North Korea squad walked off the pitch and only returned when the squad was re-introduced with the correct flag shown.
Upon the embarrassment, London 2012 spokesman, Andy Mitchell said: "The South Korean flag was shown in the video package on the screen before the kick-off and the North Koreans were naturally very upset about that.
"A genuine mistake was made for which we apologise."
Relations between the nations are notoriously tense and the team's coach insisted his side would not have taken to the field had the error not been fixed.
North Korea’s coach Sin Ui Gun told reporters: "Our team was not going to participate unless the problem was solved properly.
"Unfortunately it took some time later for the broadcast to be done again properly and we made the decision to go on with the match."