Transcript for Ukraine Separatists Hand Over Flight 17's Black Boxes
The latest on Malaysia flight 17. The victims are finally heading home this morning, pro-russian rebels have handed over the jet's black boxes as angry european leaders push new sanctions on Russia. ABC's chief foreign correspondent terry Moran is at the crash site in Ukraine. Good morning, terry. Reporter: Good morning, George. Investigators are on the scene here. They're taking pictures, making measurements of the wreckage but I just spoke with one of the members of the team of international monitors who are here, and he told me they have concluded this wreckage has been, quote, significantly altered. Some pieces seem to be missing and have seen people carving into this wreckage with power tools. This morning the Ukrainian city of kharkiv, the train carrying the bodies of the dead arrived and daunting task begins of trying to identify the remains so they can be sent home. After hours of negotiations and days of international pressure, pro-russian rebels have handed over what they say are flight mh17's black boxes to investigators in don much etsk. They are important but so is the crash site. Experts looking for shrapnel, explosive residue, telltale damage that will reveal what took that plane down. Forensic sweep of the whole area. If that's possible, I don't know. Reporter: This morning international investigators are at the scene hoping to make some headway now that the pro-russian rebels are finally allowing unfettered access. This after days of what president Obama called outright evidence tampering by the separatists. Russia and president Putin in particular has direct responsibility to compel them to cooperate with the investigation. That is the least that they can do. Reporter: Australian prime minister Tony Abbott was even harsher. After the crime cops the cover-up. What we have seen is evidence tampering on an industrial scale and obviously that has to stop. Reporter: Also this morng, new and sobering images. This photo shows the span of the wreckage across 1 square miles including patches of charred Earth and debris scattered over fields and hills. The next step is an international team of investigators will take over this site but given what I've just heard from the international monitors, what they called the very invasive, significant altering of evidence of wreckage at this site, it's hard to say what they can learn. Thanks. To Amy, this morning's other top stories.
This transcript has been automatically generated and may not be 100% accurate.