David Cameron was caught on mic saying 2 countries at his anti-corruption summit are 'fantastically corrupt'

David Cameron got the anti-corruption summit he is hosting off to an embarrassing start on Tuesday when he was recorded on camera describing Nigeria and Afghanistan as "fantastically corrupt" and "possibly the two most corrupt countries in the world."

The prime minister invited political leaders and business people from around the world to London to discuss a plan to "galvanise a global response to tackle corruption," according to the government's website.

However, Cameron was overheard telling an audience of the Queen, the Archbishop of Canterbury Justin Welby, and Commons Speaker John Bercow that representatives from the "two most corrupt countries in the world" were in attendance.

Downing Street declined to comment directly on the prime minister's remarks but said that the leaders of both countries had acknowledged the size of the problem they faced, according to ITV.

Watch the clip below.