The downed Malaysia Airlines plane in eastern Ukraine suffered an explosive loss of pressure after it was punctured by shrapnel from a missile, security officials in Ukraine say.
They say the information came from the plane’s flight data recorders, which are being analyzed by British experts.
However, it remains unclear who fired a missile, with pro-Russia rebels and Ukraine blaming each other.
Many of the 298 people killed on board flight MH17 were from the Netherlands.
Dutch investigators leading the inquiry into the crash have refused to comment on the Ukrainian claims.
Heavy fighting has prevented an international police force composed of Dutch and Australian officers from reaching the crash site for a second consecutive day.
Ukraine’s army said on Monday it had managed to capture two towns near the wreckage in its bid to win back territory from the hands of the rebels.
The international delegation was stopped in Shakhtarsk, a town some 20 miles away from the area where flight MH17 was brought down.
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