"A small team has recovered body parts at the site after pieces of the wreckage were lifted with a crane," the Dutch defence ministry said in a statement.
Dutch experts, who are charged with body part recovery and also leading the probe into the fatal July 17 crash that killed all 298 on board, arrived at the site on Tuesday.
They are hoping to recover the debris from the doomed Malaysia Airlines flight, amid fears that full-scale fighting could break out again.
The Dutch team's chief official, Pieter-Jaap Aalbersberg, said his small group had "done everything they could" to retrieve body parts and personal belongings.
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"To continue, we would now need heavy equipment and far more forensic experts. At this moment it's not possible," Aalbersberg said in the statement.
He added the security situation around the crash site "remained fragile".
Kiev and the West have claimed that the Boeing 777 was shot down in the conflict-torn area by separatist fighters using a BUK surface-to-air missile supplied by Russia. Moscow denies the charges, pointing the finger back at Kiev.
Dutch Foreign Minister Bert Koenders warned over the weekend that the last remains of MH17's victims may never be recovered as five more coffins were flown back to the Netherlands.
The Defence Ministry said work had not started yet to recover parts of the wreckage for the air crash investigation.
Representatives from the Organisation for Security and Cooperation in Europe (OSCE), which has been negotiating with separatists on behalf of the Dutch government, "were still in talks".