Pranksters posed as Zelensky in a call with the Federal Reserve chairman.

WASHINGTON – Pranksters posing as President Volodymyr Zelensky of Ukraine tricked the chairman of the Federal Reserve, Jerome H. Powell, into having a conversation with them in January, according to a video clip covered by Russian state television and posted online.

The ruse — apparently staged by two Russian comedians who support President Vladimir V. Putin — involved asking Mr. Powell about the American and global economy. His comments appear to be consistent with what he regularly expresses in public.

Fed spokesman said Mr. Powell participated in a conversation in January with a person who misrepresented himself as the president of Ukraine, which he was listening to that the discussion took place in the context of the central bank’s support for the Ukrainian people. The spokesperson said no sensitive or confidential information was discussed.

The video appears to have been edited, and the Fed said it could not confirm its accuracy. The matter has been referred to law enforcement, the spokesman said.

The two pranksters have also tricked other global leaders, including Christine Lagarde, president of the European Central Bank, and Angela Merkel, the former German chancellor.