Rro-Russian militants in eastern Ukraine handed over two flight-data recorders from the downed MH17 plane to Malaysian experts at a meeting in the city of Donetsk, BBC News reports.

The handover came hours after the UN Security Council voted unanimously to demand immediate international access to the crash site.

The Malaysian Airlines passenger jet crashed last week, killing all 298 people on board. Western nations say there is growing evidence that flight MH17 was hit by a Russian-supplied missile fired by militias, but Russia has suggested Ukrainian government forces are to blame.

European Union foreign ministers are expected to discuss further measures against Russia later on Tuesday, July 22.

Experts say the "black boxes" will reveal the exact time of the incident and the altitude and exact position of the aircraft.

They should also contain the cockpit voice recorder, which it is hoped will provide clues as to what the cause of the crash was.

The head of the Malaysian delegation told reporters that the recorders were "in good condition".