The son of US presidential contender Joe Biden is to step down from the board of a Chinese company amid fierce attacks by President Donald Trump.

Axar.az reports citing BBC.

Hunter Biden's lawyer said he would also not work for any foreign-owned companies if his father is elected.

Mr Trump has called on China and Ukraine to investigate Joe Biden over his son's activities in both countries, without any evidence of any wrongdoing.

The issue is central to an impeachment inquiry against the US president.

Mr Trump and his supporters have accused Joe Biden of abusing his power as vice-president to pressure Ukraine to back away from a criminal investigation that could implicate his son who then worked for a Ukrainian energy company.

He has also accused Hunter, 49, of using his position of influence to get China to invest in a fund he was involved in.