International observers have turned back from another attempt to reach the site where Malaysia Airlines Flight 17 went down in eastern Ukraine.
Observers from the Organisation for Security and Cooperation in Europe (OSCE) set out in two vehicles without crash investigators from the Netherlands, who have been trying to reach the site for several days.
The OSCE observers turned back to the city of Donetsk after discussions with rebels.
Safety concerns and hindrance from the separatists, who control the area have kept the investigation team away. Foreign governments whose citizens died have complained the site is not secured and some human remains have not been recovered.
