More from RFE/RL's News Desk:
Ukrainian President Petro Poroshenko has accepted the resignation of Defense Minister Valeriy Heletey.
A statement on Ukraine's presidential website on October 12 said Poroshenko felt it was time to change "the defense leadership of the country."
It added that the president will "submit a nomination" for a new defense minister to parliament on October 13 and that he expected a vote on the nominee to take place the next day.
Heletey, who was appointed by Poroshenko in July, received criticism in recent weeks for the deaths of about 100 Ukrainian forces in the eastern city of Ilovaisk, who were encircled by pro-Russian separatists and reportedly supported by Russian forces.
Protesters at the Defense Ministry building in Kyiv in late August also demanded Heletey be sacked.
The website statement said Poroshenko had also formed an Intelligence Committee that would be chaired by Ihor Smeshko.
BREAKING: Ukrainian President Petro Poroshenko has accepted the resignation of Defense Minister Valeriy Heletey. MORE TO COME
A photo of those graves in Rostov-on-Don mentioned earlier.
The "Belarusian Partisan" news site is reporting claims by a Russian blogger in the city of Rostov-on-Don that he has discovered dozens of fresh graves in the city's municipal cemetery.
The blogger, Andrei Palych, wrote on the LiveJournal social networking site that he noticed the gravesites while visiting the grave of his father, who died last year and was buried in a section of the cemetery overlooking the Suvorov military housing complex.
Palych said the road to his father's plot had narrowed considerably and was now surrounded by a number of fresh graves, each marked with a small, handwritten sign. "Almost all the graves are marked with the suffix 'NM' or 'NZh'" -- the Russian abbreviation for "unknown man" and "unknown woman" -- "but there are also some with names and surnames," Palych wrote.
"Most of the graves' dates of death are from the summer and autumn of this year, although there are some also listed as being in 2013 and 2012. But you can see that the graves were all made at the same time... The majority are listed as being between 20-30 years old, 40-45. Almost all of them were under 60."
The blog item, which includes multiple photographs of the fresh graves, has prompted speculation that Russian soldiers killed in the war in Ukraine have been buried in the Rostov cemetery. Palych's LiveJournal post has sparked more than 1,000 comments.
The latest allegation follows reports last week that Russian paratroopers killed in Ukraine were secretly buried in Russia's Golden Ring city of Kostroma. The Kremlin has come under increasing criticism, particularly from soldiers' families, for failing to provide transparent information about how many Russian soldiers have deployed in Ukraine, and how many have been killed.