Photo from UNIAN

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

Read alsoUkraine reports four enemy attacks in Donbas on Jan 11

"The armed forces of the Russian Federation violated the ceasefire four times on January 12," the press center of Ukraine's Joint Forces Operation said in a Facebook update as of 07:00 Kyiv time on January 13, 2020.

The enemy opened fire from proscribed 82mm mortars, grenade launchers of various systems, heavy machine guns, and small arms near the villages of Vodiane, Novotoshkivske, Orikhove, and Travneve.

There were no Ukrainian army casualties in the past day.

From 00:00 to 07:00 Kyiv time on Monday, January 13, Russian-led forces were observing the ceasefire.