The national flag fluttered across the city as North Korea marked the 20th anniversary of late leader Kim Jong Il's appointment as chairman of the National Defense Commission, and workers began preparing the city for the April 15 birthday of late President Kim Il Sung.

NPR: NKorea Urges Foreigners To Vacate South Korea

North Korea's team walked off the pitch before its clash with Colombia after the flag of neighboring country -- and archrival -- South Korea was mistakenly shown on Hampden Park's big screen as it displayed player profiles.

CNN: July 27, 2012 -- Updated 0040 GMT (0840 HKT)

Mr Cameron earlier played down the flag blunder, which happened on the first day of sporting action, and delayed the women's football match between North Korea and Colombia at Glasgow's Hampden Park by about an hour.

BBC: London 2012 will show 'Britain can deliver', says PM