President Donald Trump's daughter-in-law was taken to a hospital as a precaution on Monday after she was exposed to an unknown substance that was mailed to her Manhattan apartment.
Vanessa Trump, wife of Donald Trump Jr., complained of nausea after opening an envelope that contained an unidentified white powder, Reuters reported, citing a police spokesman.
The letter was addressed to Trump Jr., the president's eldest son, according to multiple reports.
The New York Fire Department said that two others at the residence were taken to the New York Presbyterian-Weill Cornell Medical Center as a precaution.
The New York Police Department and Secret Service are investigating the incident. Preliminary tests show there was nothing harmful in the substance. There is no indication at this point that anyone suffered any injuries.
This story is developing and will be updated as more information becomes available.