Russia said Tuesday that the US citizens captured in Ukraine were subject to "court decisions" and "can't rule anything out" over what penalty they might receive, Kremlin spokesperson Dmitry Peskov told reporters.
He said the Kremlin did not know where the two men are currently, after their families said they had not returned from a mission in the Kharkiv region.
On Monday, Russia said the pair were mercenaries not covered by the Geneva Conventions.