An armed conflict between government troops and separatist rebels has killed more than 9,600 since it began in 2014, according to the UN Human Rights Office. A January cease-fire had until recently helped to limit the fighting to sporadic shoot-outs.
The government's press office for the operation in the east said it recorded an increase in fighting on several fronts yesterday which left at least five killed and nine troops injured.
Two more were killed and five injured Monday morning, north of the rebel stronghold of Donetsk, the press office said.
The Grad launcher is among heavy-caliber weapons that should have been pulled back from the front line under a 2015 truce between the warring parties.
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In Donetsk, self-proclaimed separatist authorities reported substantial damage to civilian infrastructure, with several villages and Donetsk neighborhoods left without electricity and gas supply.
The separatist Donetsk News Agency reported one civilian killed and three injured in Makiivka, north-east of Donetsk.
Both sides reported that fighting continued on Monday morning.