OSCE: Cease-Fire Violations In Eastern Ukraine At 'Worrying Levels'

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WATCH: Ukrainian government and Russia-backed separatist forces traded accusations about responsibility for a deadly shelling of civilians on a roadway near Donestsk. Local authorities reported at least five people died near a checkpoint in the separatist-controlled area.

The security situation in eastern Ukraine is worsening, with cease-fire violations at their highest level in months, the chief OSCE monitor warned on April 28.

The statement by Ertugrul Apakan, head of the OSCE Special Monitoring Mission (SMM) to Ukraine, came as four civilians were reported killed in shelling in eastern Ukraine.

"During the past weeks, the OSCE has registered the highest number of cease-fire violations in months," Apakan said in a briefing of the Permanent Council of the OSCE in Vienna. "Armed violence in eastern Ukraine has once again reached worrying levels."

The Organization for Security and Cooperation in Europe (OSCE), a pan-European rights and security body, independently monitors the conflict.

The current cease-fire was agreed under a deal known as Minsk II, which was brokered in February 2015 by France and Germany and also signed by Russia, Ukraine, the Russia-backed separatists, and the OSCE.

Apakan warned that artillery and mortars banned under Minsk II "are being used again in increased numbers."

"A sustainable cease-fire is of central importance to the further implementation of the Minsk agreements," Apakan told the council. "Now is the time for the sides to show visible and decisive action to restore it."

More than 9,100 people have been killed in fighting in Ukraine's eastern and southern regions and around 21,000 others wounded since violence broke out between the Ukrainian government and Russia-backed separatists in 2014.

Apakan, speaking to journalists after the briefing in Vienna, also raised concern about "direct attacks" against SMM monitors, which he said were taking place "with impunity for the perpetrators."

"Three serious security incidents have taken place recently: Weapons were shot in the direction of SMM monitors, they were threatened at gunpoint, and one SMM vehicle was hit by a bullet," he said.

"This impunity for people who threaten, violently mistreat or attack the SMM, or who violate its freedom of movement, must end," he said.

Apakan also said monitors "continued to experience restrictions in reaching the Ukraine-Russian Federation border in areas not controlled by the [Ukrainian] government."

Separately, at a security conference in Moscow on April 28, OSCE Secretary-General Lamberto Zannier spoke out against the idea of giving weapons to monitors.

Zannier said arming the OSCE monitors should only be done if there is consensus and clear agreements are in place, and if their tasks are clearly understood.

At least four civilians were killed April 26 when three cars were fired upon close to a rebel checkpoint near the edge of the rebel-held town of Olenivka in the eastern Ukrainian region of Donetsk, the OSCE said in a separate statement, without assigning blame.

Alexander Hug, deputy head of the SMM, told RFE/RL's Ukrainian Service that monitors who examined the site of the attack established that the fire had come from artillery shells.

Kyiv has denied the separatists' accusation that Ukrainian forces opened fire on the checkpoint.

With reporting from RFE/RL's Ukrainian Service