According to the agency's report, in addition to small arms and grenade launchers, the Russian-backed mercenaries have increasingly started to use mortars.

Read alsoMilitants shell border guard post in Maiorsk At about 23:00 on Monday, the militants once again shelled the Maiorsk checkpoint, which is in the direction of the Zaitseve exit/entry control checkpoint.

"They used mortars to hit the border guards, and fired from the militant-controlled town of Horlivka. In general, the Russian mercenaries launched more than 10 mines of the 120mm caliber," the report stated.

No guard was injured.