WASHINGTON — Michael Cohen's closed-door testimony before the Senate intelligence committee has been postponed "due to post-surgery medical needs," his attorney said Monday.

Cohen, President Donald Trump's former personal lawyer, is under subpoena from the committee and was scheduled to talk to the panel Tuesday. Cohen's attorney, Lanny Davis, said in a statement that the interview had been postponed for medical reasons. Cohen was recently seen with his arm in a sling. Davis said last month that he had undergone minor shoulder surgery.

This is the third time Cohen has postponed congressional testimony. He pulled out of a public hearing in the House Oversight and Reform Committee that was scheduled for Feb. 7, citing threats from Trump and the president's attorney-spokesman, Rudy Giuliani. Last week, House Intelligence Committee Chairman Adam Schiff said a closed-door interview with Cohen had been postponed to later in the month "in the interests of the investigation."

Schiff wouldn't say if he was talking about his own committee's investigation or special counsel Robert Mueller's Russia probe, with which Cohen has cooperated.

Cohen will now talk to the House intelligence panel on Feb. 28. It is unclear if he has scheduled a new date to speak to the Senate investigators, who subpoenaed him to appear. Aides to Senate Intelligence Committee Chairman Richard Burr, R-N.C., and the top Democrat on the panel, Virginia Sen. Mark Warner, declined to comment.

Cohen talked to both committees in 2017 and has since pleaded guilty for lying to them about his role in a Trump business proposal in Moscow. Cohen acknowledged that he misled lawmakers by saying he had abandoned the project in January 2016 when he actually continued pursuing it for months after that.

He's set to begin a three-year prison sentence in March. He has also pleaded guilty to campaign finance violations for his involvement in payments to a former Playboy model and porn actress who had alleged affairs with Trump. Trump has denied the allegations.