HRABOVE, Ukraine — A refrigerated train carrying Malaysia Airlines victims' bodies pulled away Monday from a rebel-held town in eastern Ukraine, one small step forward in easing the agony of their grieving families.
In an emotional inspection hours earlier, Dutch experts had called for a full forensic sweep of the Flight 17 crash site and told the armed separatists controlling the area that the train must be allowed to leave as soon as possible.
Four days after someone shot the Boeing 777 out of the sky, killing 298 people, pressure was growing on Russian President Vladimir Putin to rein in the insurgents and allow a full-scale investigation into the downing of the plane. The U.S., Ukraine and others say Moscow has armed the rebels, a charge Russia denies.
In Washington, President Barack Obama demanded that international investigators get full access to the crash site and accused the separatists of removing evidence and blocking investigators.
"What exactly are they trying to hide?" Obama asked, a day after the U.S. presented what it called "powerful" evidence that the rebels had shot down the plane with a Russian surface-to-air missile.
A team of international observers at the crash site suggested that some of the evidence may have been tampered with.
At the biggest of the incident sites on Monday, "we did not see any perimeter security in the place," OSCE spokesman Michael Bociurkiw told reporters in Donetsk. The monitors observed that one of the largest pieces of debris "had somewhat been split or moved apart."
On an earlier visit to one of the smaller impact sites observers had also witnessed apparent tampering. "When we were leaving, we observed workers there hacking into the fuselage with gas-powered equipment," Bociurkiw said.
At the U.N. in New York, the Security Council was voting later Monday on an Australia-proposed resolution demanding international access to the crash site and a cease-fire around the area. Australian Prime Minister Tony Abbott said his country would view a Russian veto of the resolution "very badly," adding that "no reasonable person" could object to its wording.
Fighting flared again between the separatists and government troops in the eastern rebel-held city of Donetsk, just 50 kilometers (30 miles) to the west of the crash site. City authorities said battles took place Monday near the town's airport. An AP reporter heard several explosions and saw smoke rising from that direction.