Ukraine's Permanent Representative to the United Nations Yuriy Serheyev has called on Russia and pro-Russian armed groups in the east of Ukraine to abide by the Minsk Protocol and ensure international experts' unhindered access to the site in Donetsk region where Malaysia Airlines MH17 crashed on July 17, 2014.

"I'd like to call on Russia and pro-Russian militants to fulfill their obligations under the Minsk Protocol, ensure unhindered access to the crash site," he said at a UN Security Council meeting on Friday.

Serheyev also demanded that the security of commercial flights over eastern Ukraine be guaranteed.

He also announced that since the announcement of a truce in the east of Ukraine at 18.00 Kyiv time on September 5, 2014, illegal armed groups have violated it 480 times. "The truce is being constantly violated, it has been broken 480 times already," he added.

The MH17 flight of the Malaysia Airlines Boeing 777 en route from Amsterdam to Kuala Lumpur crashed in eastern Ukraine on July 17. It had 298 people on board and they all died, 192 of them were Dutch citizens (one person had U.S. citizenship as well), 44 were Malaysian citizens, including 15 crew members, 27 Australian citizens, 12 citizens of Indonesia, 10 British citizens (one had citizenship of South Africa as well), four German citizens, four Belgians, three citizens of the Philippines, one Canadian, and one citizen of New Zealand.

The Dutch Safety Board published a preliminary report on an investigation into the MH17 crash on September 9, which says that the plane did not have technical faults and its in-flight disintegration was caused by a large number of high-energy objects that penetrated it from the outside.