Robert Trump, the younger brother of President Donald Trump, is hospitalized in New York, the White House confirmed.

During a White House briefing on Friday, Trump declined to provide reporters with details on his brother’s illness.

“I have a wonderful brother. We have a great relationship for a long time, from day one, so long time ago. And he’s in the hospital right now,” Trump said when asked what ailed his brother.

“Hopefully he’ll be alright, but he’s — he’s pretty — he’s having a hard time,” Trump added.