A yoga instructor has claimed that she was touched inappropriately by Donald Trump at the US Open tennis tournament in 1998, the tenth woman to accuse the presidential nominee of sexual assault.

It came as reports suggested British television presenter Selina Scott might release her own "bombshell" account of Mr Trump's sexual advances behind the scenes of a television programme she made about him in 1995.

Yoga instructor Karena Virginia said she felt "intimidated" when the billionaire touched her breast at the event in Flushing Meadows Park, New York.

She claimed she was waiting for a car and Mr Trump approached, telling some other men "Hey look at this one, we haven't seen this one before," and "Look at those legs".

Ms Virginia said he told her "Do you know who I am?"

She said: "He then walked up to me and reached his right arm and grabbed my right arm. Then, his hand touched the right inside of my breast. I was in shock. I flinched.