Diane Bondaress/AP/Shutterstock Robert Trump (left) and his older brother Donald Trump in 1999
Donald Trump's younger brother, Robert, has been hospitalized and the president plans to visit him, the White House said Friday.
Robert's exact condition was not immediately clear and White House aides did not respond on the record to further questions about his health.
Trump, 74, told reporters at the White House that Robert is in the hospital and "having a hard time."
“I have a wonderful brother," Trump said. "We’ve had a great relationship for a long time, from day one — that’s a long time. He’s in the hospital right now and hopefully he’ll be alright. He’s having a hard time.”
The president did not answer a question about what caused Robert to be taken to the hospital.
ABC News, which first reported Robert's hospitalization, cited multiple sources describing the 71-year-old as "very ill."
According to the network, Robert had been in intensive care in June in New York City.
Chip Somodevilla/Getty Donald Trump (right) hugs his brother Robert Trump (left) after delivering his acceptance speech in the early morning hours of November 9, 2016 in New York City
Sonia Moskowitz/Getty Donald Trump, Ivana Trump, Robert Trump and Blaine Trump at the Rainbow Room in New York City
Amid his health issues, Robert fought a legal battle this summer against his niece, Mary Trump, over her scathing tell-all about the president and their family — which included scenes of the younger Robert sometimes being tormented by his older brother.
The president's brother told Page Six in 2016 that he was “gainfully retired" and living on Long Island.
The Trumps' oldest brother, Fred Trump Jr., died in 1981 after years of alcoholism. The eldest Trump brother was Mary's father and died at 42.
Mary had engaged in a legal battle with her uncles, Robert and Donald, this summer over the release of her new memoir.
Robert unsuccessfully argued in court this summer that Mary had violated a 2001 confidentiality agreement she had signed with her uncles by releasing the book.
"I and the rest of my entire family are so proud of my wonderful brother, the president, and feel that Mary’s actions are truly a disgrace,” Robert told The New York Times in a statement in June.
A court ruled in favor of Mary and she released the best-selling book in July.
Robert had largely remained outside the public eye in recent years, despite his older brother's daily headline-grabbing statements and actions as president.
He was previously married to Blaine Trump for 25 years before they got divorced in 2008.
Robert was on hand to celebrate his brother's 2016 election win — hugging the president-elect, after the latter delivered his acceptance speech, and then went to find his brother in the crowd at the New York Hilton Midtown in New York City.
Robert also has two older sisters: retired U.S. appeals court judge Maryanne Trump Barry, 83, and 78-year-old Elizabeth Trump Grau, who worked in banking.