Ponomarev said that on Tuesday two militia people were killed in armed clashes near Sloviansk, adding that “there were no casualties reported among civilians.”
His spokeswoman Stella Khorosheva said that Ukraine's military has amassed armoured vehicles and self-propelled mortars and howitzers near the city. The military equipment numbering 100 units includes Grad salvo systems.
At the Ukrainian parliament’s session on Tuesday, Vladimir Medyanik, a lawmaker with the Communist Party, urged the government to immediately stop the bloodshed in the eight-million populated south-eastern region of Ukraine, where the death toll already amounts to dozens or hundreds killed.
“Hostilities should be stopped immediately. There cannot be a winner in the civil war,” Medyanik said addressing the parliament.
Ukraine's parliament-appointed acting prosecutor general said 181 people were dead and 293 wounded since fighting broke out in the country's eastern Donetsk and Luhansk regions.
"Fifty-nine servicemen were among those killed," Oleg Makhnitsky told a news conference on Tuesday, adding that more than 200 people, including 12 foreigners, had been abducted in the country's east.
Prosecutors had opened 765 criminal cases over sabotage, terrorist attacks and riots, he said.
A punitive operation by Kiev against federalization supporters has already claimed dozens of lives, including civilian. The Donetsk and Luhansk regions held referendums on May 11, in which most voters supported independence from Ukraine.
People’s Mayor of Donetsk Alexander Lukyanchenko said evacuation of all people from his city is impossible at the moment. He said there are currently 60,000 children and about 270,000 elderly staying in the city.