This was reported by the OSCE, BBC-Ukraine informs.
The three-party contact group managed to run a video conferencewith representatives of the separatists, "to agree on a number ofurgent measures".
During the negotiations, they promised to allow emergencyservices to start preparation for the bodies moving-out.
According to the latest information, 298 people became victimsof the disaster.
"They (separatists) should cooperate with the appropriateUkrainian authorities on all practical issues that arise during therescue works and investigation", the OSCE statement says.
OSCE Chairman Didier Burkhalter offers condolences to thebereaved families.
He welcomed the readiness of the Ukrainian authorities toinvolve international experts into investigation. AccordingBurkhalter, the OSCE is ready to support Ukraine in this operationby any possible mean.