Donald Trump Jr tests positive for Covid

Donald Trump Jr, the son of US President Donald Trump, has tested positive for Covid-19, although he is experiencing no symptoms, his spokesman says.

Trump Jr tested positive at the start of the week and has been "quarantining at his cabin since the result," the spokesman said.

"He's been completely asymptomatic so far and is following all medically recommended Covid-19 guidelines."

Andrew Giuliani, the son of the president's personal lawyer Rudy Giuliani, also said he tested positive for Covid-19 on Friday.