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Investigators to examine second black box from MH17

Air investigators are to examine a second black box which was recovered from flight MH17 today.

The data could reveal if the pilots were aware of a missile coming towards the plane and what happened in the last few seconds of the flight if they were able to speak.

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Pro-Russian rebels 'hampering MH17 investigation'

Pro-Russian rebels are restricting access to the crash site of MH17, and may even have destroyed evidence linked to the attack, reports suggest.

A standoff at the wreckage between investigators from the Organisation for Security and Cooperation in Europe (OSCE) and rebels reportedly led to a warning shot being fired.

A pro-Russian separatist patrols an area of the crash site in eastern Ukraine. Credit: Reuters

The fate of black boxes and other devices recovered from the plane are also unknown.

Despite calls for a full and independent probe into the disaster which claimed the lives of 298 people, the OSCE said armed personnel prevented observers inspecting the wreckage fully.

"We encountered armed personnel who acted in a very impolite and unprofessional manner. Some of them even looked slightly intoxicated," a spokesman added.

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