Vanessa Trump, the wife of Donald Trump Jr, and two other people have been taken to a hospital after she opened a piece of mail containing a white powder.
The powder was later determined not to be hazardous, New York officials said.
“The substance had arrived by mail and it was addressed to Donald Trump Jr,” New York Police Department spokesman Carlos Nieves said.
Vanessa Trump, the daughter-in-law of President Donald Trump, was hospitalised after she complained of nausea following her exposure, New York officials said.
Three patients from the household were transported to the NewYork-Presbyterian/Weill Cornell Medical Centre for further evaluation, the Fire Department said.
The three included Vanessa Trump’s mother, though she had not complained of symptoms, the police spokesman said.