The five men and four women, who have yet to be named, were accused of violating the country’s aviation security laws after being arrested by police at Incheon International Airport, following their behaviour on their flight from Moscow.

They were detained at an immigration office in Incheon and as they will no longer be able to compete at the world’s largest military event,  Russia’s team has been reduced to only eight athletes.

An official from South Korea's immigration service confirmed to Reuters that the nine had been deported today.

The sixth edition of the Games is set to be the largest in its history with 7,000 athletes from 117 countries due to compete across 24 sports.

South Korea’s President Park Geun-hye, whose father served in the Manchukuo Imperial Army before serving as the President from 1961 to 1979, delivered a speech at the Opening Ceremony at the KAFAC Sports Complex today.

The Ceremony also saw an air show performance from South Korea's flight display team the Black Eagles, while demonstrations involving the country’s guards of honour and military taekwondo teams also took place.

Athletes, who had earlier marched into the venue, were also able to watch a solider dance performed to a traditional South Korean folk song.

Han Jung-Gu, who directed the Opening and Closing Ceremonies of the Seoul 1988 Summer Olympics, produced the performance while participants were directed by Son Jin-Chaek, who held the same role for both Ceremonies at the 2002 FIFA World Cup.

Competition at the CISM World Games is due to take place from today until October 11, with the quadrennial event aiming to promote peace and take place in both the CISM and Olympic spirit, without political, religious and racial consideration nor discrimination.

The first edition of the event took place in Italy’s capital city Rome in 1995, while the most recent edition of the Games took place in Rio de Janiero, Brazil, in 2011.