The BBC reports the Trump campaign has claimed, without evidence, there is voter fraud and wants to stop the count in Pennsylvania, Wisconsin, Georgia and Michigan. 

Trump and Biden each claim to be ahead in the US presidential election, even as the final outcome hangs on a razor's edge and both sides ramp up for legal action. 

Biden had the support of 70.5 million voters, the most won by any presidential candidate ever. Trump has pulled in 67.2 million votes, four million more than he gained in 2016.

The BBC projects Biden won Michigan. US media forecast he took Wisconsin. No result has emerged in Pennsylvania.

Winning all three of these Rust Belt states would hand Mr Biden victory.

Democratic candidate Biden stopped short of declaring he had won, but said he was confident he was on course to defeat Republican Trump.

BBC