Two more women have claimed that Joe Biden inappropriately touched them, in a further blow to the former US Vice President said to be considering a bid for the White House.

Caitlyn Caruso, 22, told the New York Times on Tuesday that Mr Biden hugged her "just a little bit too long" when she was 19 at a University of Nevada event on sexual harassment.

According to the former student, the senior Democrat rested his hand on her thigh moments after Miss Caruso had shared a personal story of sexual assault.

She said: “It doesn’t even really cross your mind that such a person would dare perpetuate harm like that".

A second women, 59-year-old DJ Hill, also told the New York Times that Mr Biden had placed his hands on her shoulders and dropped them down her back at a 2012 campaign event in Minneapolis.

The new claims follow that of Amy Lappos, who said Mr Biden had rubbed noses with her, and Lucy Flores, who claimed Biden had kissed her on the back.

US President Donald Trump took a shot on Tuesday at Mr Biden, a possible Democratic rival in the 2020 race for the White House, mocking him over allegations of unwanted physical contact with women.