Russian rocket attacks hit Ukraine's second-largest city, Kharkiv, injuring five people, and the Donetsk region continued with heavy fighting, leaving five civilians wounded.
The rocket attacks in Kharkiv struck an apartment complex and a nearby education building, with four people injured by an S-300 missile, and another by a missile that hit the National Academy for Urban Economy.
The Donetsk region is one of four regions that Russia illegally annexed last year.
On Sunday, Russia's rocket attacks hit Ukraine's second-largest city, Kharkiv, injuring five people, and the Donetsk region, where heavy fighting continued, wounding five civilians.
Regional governor Oleh Syniehubov stated intelligence reports indicate the attacks were launched by the same individuals responsible for the deadly ambush that killed 30 Ukrainian soldiers in January.
Russian President Vladimir Putin may resort to escalating violence to counter escalating pressures over the conflict in Ukraine.
The Russian army has been churning up more violence in Ukraine recently, including the buildup of tanks and missile systems, and Ukraine has now closed its airspace to Russian troops.
Ukraine is going through one of the worst economic crises ever in history and is fighting a two-front war.
Meanwhile, the US has urged Russia to take diplomatic steps and de-escalate the situation, while Washington has begun providing non-lethal aid, insisting no involvement in the conflict.