DONETSK, August 22. /TASS/. Ukraine’s forces shelled Dokuchayevsk located near the contact line from artillery weapons with the caliber of 122mm late on Sunday, a law enforcement source in the self-proclaimed Donetsk People’s Republic said.

"At around 10.30 p.m. the Ukrainian side opened fire at Dokuchayevsk from 122mm artillery weapons. A total of 10 artillery shells have been fired," the source told the Donetsk news agency.

During the shelling of Dokuchayevsk the Kiev forces also used infantry combat vehicles, grenade launchers and small arms, according to the source.

The DPR operative command earlier reported that the Kiev forces had shelled the republic’s territory 520 times over the past 24 hours, and the situation remains tense in the region.

The participants of the Contact Group on settling the crisis in eastern Ukraine agreed to observe the silence regime starting from midnight on April 30. This is the eighth ceasefire agreement since the autumn of 2014. However, the Ukrainian army has repeatedly violated the truce opening fire from mortars, tanks and artillery weapons that were to have been withdrawn under the Minsk peace deal.