Members of the Ukrainian Emergencies Ministry work at a crash site of Malaysia Airlines Flight MH17, near the village of Hrabove, Donetsk region July 20, 2014. Ukraine accused Russia and pro-Moscow rebels on Saturday of destroying evidence to cover up their guilt in the shooting down of a Malaysian airliner that has intensified a showdown between the Kremlin and Western powers. REUTERS/Maxim Zmeyev (UKRAINE - Tags: DISASTER POLITICS TRANSPORT)