The dogs are helping 70 experts in eastern Ukraine search the debris field of the crash site, the Organization for Security and Co-operation in Europe said. The organization is monitoring the search.
International investigators arrived at the site Thursday after a week of rebel fighting prevented access.
Malaysia Flight 17 crashed in the eastern part of Ukraine near Donetsk on July 17 after it was allegedly shot by a surface-to-air missile. All 298 people on board the plane died.
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