Kremlin spokesperson Dmitry Peskov told CNN on Friday that he does not know anything about two American fighters who went missing north of Kharkiv, Ukraine.
"No, we do not know anything about it," Peskov said during a media call.
The two Americans fighting alongside Ukrainian forces have been missing for nearly a week, and there are fears that they may have been captured by Russian forces, according to their families and a fellow fighter.
The men are Alexander John-Robert Drueke, age 39, from Tuscaloosa, Alabama; and Andy Tai Ngoc Huynh, age 27, from Hartselle, Alabama.
On Thursday, a photo emerged on the Telegram channel of a Russian blogger which appeared to show the two Americans in the back of a military truck, apparently confirming they had been captured by Russian forces.
The photo shows the two men looking up at the camera with hands behind their backs as if bound.
On Thursday the US State Department said there is potential evidence that Alexander Drueke has been captured, but it cannot verify the photo at this time, his mother, Bunny Drueke, told CNN.
The undated photo was posted on Telegram on Thursday by a Russian blogger, The V -- whose full name is Timofey Vasilyev, from Moscow. CNN cannot verify when it was taken.