First Lady Melania Trump has threatened to sue Hunter Biden for more than $1bn after he claimed she was introduced to her husband by sex offender Jeffrey Epstein, BBC reported. 

Lawyers acting on behalf of the first lady, who married US President Donald Trump in 2005, described the claim as "false, disparaging, defamatory and inflammatory". 

Biden, son of former US President Joe Biden, made the comments during an interview earlier this month, in which he strongly criticised the president's former ties to Epstein.

Donald Trump was a friend of Epstein, but has said the pair fell out in the early 2000s because the financier had poached employees who worked at the spa in Trump's Florida golf club, according to BBC.