Ukraine has restricted access to the occupied areas of Donetsk and Luhansk regions for foreigners and individuals without citizenship, the Joint Forces Operation HQ has said.
Representatives of the UN, OSCE and Red Cross monitoring missions will be allowed to cross the line of contact. Exceptions will also be made for foreigners permanently residing in the occupied area or travelling there for humanitarian purposes such as funeral or heavy illness of close relatives.
The restrictions have been put in place in the 10 border regions because of martial law.
Earlier, Ukraine restricted foreigners' access to Crimea.
The restrictions are being introduced following the Russian attack on three Ukrainian naval ships off the Kerch Strait on 25 November. Ukraine said it was an act of military aggression and introduced martial law in 10 border regions as of 26 December 2018.