Experts from the Netherlands and Australia once again proved unable on Monday to gain access the site of the Malaysia Airlines Flight MH17 crash in Donetsk region, eastern Ukraine, international team head Peter Jap Albersberg said at a press briefing in Kyiv on Monday.

Regrettably, access to the crash site was impossible because of fighting near Shakhtarsk, he said. The team decided to return to Donetsk after consultations with the Organization for Security and Cooperation in Europe, he said.

The experts were disappointed that they were unable to access the crash site once again, he added.

Security guarantees should be given to the experts, he said.

The OSCE is currently working to secure access to the crash site and is holding consultations with the sides in the conflict, the official said.

The experts will attempt to reach the Boeing-777 crash site on Tuesday and assess the situation there, should the level of security permit, he said.

The team includes 38 Dutch and 12 Australian investigators, he said.

The international experts were unable to access the site of the Malaysian Boeing crash on Sunday due to continuing fighting in the area.

The Malaysia Airlines passenger airplane on a flight from Amsterdam to Kuala Lumpur crashed in eastern Ukraine on July 17, killing all 298 people, mostly Dutch and Australian citizens, onboard.