Donbas militants impede OSCE monitors' work / Screenshot from youtube.com

"The command of the so-called '7th separate motorized rifle brigade' (Debaltseve) has banned the OSCE international monitors' access to the areas where [militant] fortified bases are located," Lysenko said on Sunday.

The militants continue hampering international monitors' work, which is a gross violation of the Minsk peace agreements, he said.

Read alsoOSCE considers armed police mission to Donbas amid violence escalationAs UNIAN reported earlier, an SMM patrol came under small-arms fire during a foot patrol in Avdiyivka-Yasynuvata area in Donetsk region on May 27; none of the patrol members was injured.