Russian President Vladimir Putin, who continues to self-isolate due to COVID-19 cases in his circle, is undergoing the necessary testing and is working as usual.

Axar.az reports citing foreign media that Kremlin Spokesman Dmitry Peskov said on Thursday.

"As for the president, of course, all the necessary testing is being carried out. He works in the usual manner," Peskov noted.

On Tuesday, Putin decided to self-isolate due to COVID-19 cases in his inner circle. On Thursday, he explained that not just "one or two" people in his entourage fell ill but dozens of them.