The independent site Meduza, citing a Kremlin source, reports that men of mobilization age in the Russian Federation will probably be banned from leaving the country from 28 September.
According to the source, to cross the border they will have to obtain a permit from the Military Commissariat, a sort of "exit visa".
On September 21, Vladimir Putin announced the "partial" mobilization: Defense Minister Sergy Shoigu declared that about 300,000 people will be mobilized.