Donetsk, Jul 25 - DAN. Ukrainian forces stepped up the jamming of OSCE SMM unmanned aerial vehicles that monitor the Donbass ceasefire, the Donetsk People’s Republic People’s Militia reported on Thursday.

“We recorded the operation of enemy radioelectronic warfare equipment in the areas of Konstantinovka, Starognatovka and Stepanovka to jam OSCE Special Monitoring Mission UAVs on flights to monitor the observation of the ceasefire,” the report said.

Counter-measures against international observers’ drone are also implemented in the attempt to conceal engineering works on Ukrainian army positions in Donbass, it said.

A new comprehensive, lasting and indefinite ceasefire, agreed at the Contact Group talks in Minsk, came into force in Donbass at 00:01 on July 21.*jk