Britain's Defence Secretary Liam Fox has resigned following scrutiny over his close friendship with a businessman with defence-related interests.

A stream of news stories about Fox and his former flatmate and best man Adam Werritty, who met frequently with Fox and falsely identified himself as his adviser, had eroded the minister's credibility ahead of an inquiry into the affair that was due to be published within days.

Al Jazeera's Jonah Hull reports from London