Russia's hybrid military forces on Wednesday mounted three attacks on Ukrainian positions in Donbas, eastern Ukraine.

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"The armed forces of the Russian Federation and its mercenaries violated the ceasefire three times on December 4," the press center of Ukraine's Joint Forces Operation said in a Facebook update as of 07:00 Kyiv time on December 5, 2019.

The enemy opened fire from grenade launchers of various types, heavy machine guns, and small arms.

Under attack were Ukrainian positions near the villages of Novoluhanske and Shyrokyne.

There were no Ukrainian army casualties in the past day.

Since Thursday midnight, Russia-led forces have been observing the ceasefire.