The highest-ranking official to leave the Kremlin since the war in Ukraine began has been Anatoly Chubais.
The Financial Times was told by Putin's spokesman that Chubais had resigned from his position, but he didn't say when or why.
Whether he left or not is his personal matter.
The most senior figure to leave a government post since the invasion of February 24 is Chubais, a key architect of Russia's post-communist privatisation.
He posted figures of two former Kremlin colleagues on Facebook and wrote that one of them, a liberal economic reformer named Yegor Gaidar, understood strategic risks better than him.
A photo of Chubais in a baseball cap withdrawing money from a bank machine was published by a Russian newspaper.
The couple could not be reached for comment. The news of the resignation was first reported.