MOSCOW, November 18. /TASS/. Martin Sajdik, the envoy of the Organization for Security and Cooperation in Europe (OSCE) to the Contact Group on the settlement of the east Ukraine crisis, will visit Donbas on November 20, a well-informed source at the Donetsk news agency said on Wednesday.

"Martin Sajdik is expected to visit Donbas on Friday. Under preliminary information, he will monitor recent developments and register ceasefire violations at the contact line," the source said.

In line with an agreement reached in Minsk at the meeting of the Contact Group on settling the situation in east Ukraine, the complete ceasefire was established from September 1 at the disengagement line in Donbas. Still, the DPR regularly registers separate cases of shelling on the part of Ukraine's army.