The United Nations says more than 1,100 people have been killed in the Ukrainian conflict since mid-April.
The UN human rights office said on July 28 that the latest figures showed the conflict has claimed at least 1,129 lives, with both government rebel forces using heavy weaponry in built-up areas.
It said 3,442 people have been wounded, while some 100,000 people have now fled the conflict zone in the eastern regions of Donetsk and Luhansk for other areas of Ukraine.
The agency also accused pro-Russian separatists of subjecting the eastern Ukrainian population to "a reign of intimidation and terror."
UN High Commissioner for Human Rights Navi Pillay said the downing of a Malaysian airliner on July 17 "may amount to a war crime."
The airliner crashed in Donetsk on July 17.