A flash mob of protesters have staged a mock sword-fight in Parliament Square in protest against media coverage of the General Election.

The group fought with rolled-up newspapers and carried banners that said: "Let the truth hang out."

The event was organised on social networking websites to protest at newspapers presenting the possibility of a hung parliament after Thursday's General Election in a negative light.

The news comes as shadow business secretary Ken Clarke admitted that the chances of securing an outright Conservative victory on Thursday were "slim".

He said opinion polls pointing towards a hung parliament, could not be ignored and warned this could lead to much post-election inter-party "squabbling".