The younger brother Donald Trump describes as his “best friend” has died.
Robert Trump died in hospital the day after the President went to see him.
Donald Trump has paid tribute to his younger brother saying: “His memory will live on in my heart forever.”
President Trump made an emotional visit to see his ailing brother on Friday at New York-Presbyterian/ Weill Cornell Medical Center before going to his golf club at Bedminster, New Jersey, for the weekend.
The president is expected to attend the funeral, an aide said.
US President Trump said that his younger brother died on Saturday night, adding: “It is with heavy heart I share that my wonderful brother, Robert, peacefully passed away tonight.
“He was not just my brother, he was my best friend.
“He will be greatly missed, but we will meet again. His memory will live on in my heart forever.
“Robert, I love you. Rest in peace.”
Robert Trump, who at 72 was two years younger than the president, was a business executive and real estate developer.
Robert’s cause of death was not revealed.
Trump told reporters on Friday that his brother was “having a hard time” with an undisclosed illness.