Click here to watch live coverage of the press conference being given by the Dutch Safety Board.

More planes had been shot down in east Ukraine in the weeks before the MH17 crash, investigators say.

Lower levels of Ukrainian airspace were restricted, but flight MH17 was above that height when it was shot down, says Mr Joustra. In that same time three other flight operators were in the area, he says.

Dutch investigators found that it was definitely a BUK missile that hit flight MH17. It hit the front of the plane from the left and was launched from somewhere in an area of 320 sq km in Eastern Ukraine, Mr Joustra says.

Mr Joustra says that in the opinion of the Dutch Safety Board, there was sufficient reason to close airspace above eastern Ukraine as a precaution at the time. Ukrainian authorities did not do so, he says.

Dutch Safety Board chairman Tjibbe Joustra is now outlining the main findings of the report to journalists.

Reporters have been shown a partial reconstruction of the plane using actual wreckage from the plane:

Image source, Reuters

Meanwhile the Russian state-sponsored television network, Russia Today, continues to release more details on the report by Russian missile manufacturers Almaz-Antey, contesting the findings of the Dutch report. This tweet shows an experiment conducted by the company with BUK missiles to prove their findings.

Families of the victims have received the first copies of the Dutch report, the BBC's Anna Holligan reports:

Robby Oehlers, whose niece Daisy died in the crash, also spoke to the BBC and said relatives were shown an animation "about how the plane was downed, the reconstruction of the plane; they told us if the people inside felt anything, had any notion of what was happening, that was out of the question."

Mr Sweeney also said that, as expected, the report did not say anything new about who was to blame. For that families would have to wait for the criminal report which will be released next year.

Mr Sweeney also told the BBC that it was a relief to hear that it was unlikely that passengers had suffered. "We can't be 100% certain but we think that was the case. We have to think they didn't suffer," he said.

Barry Sweeney, whose son Liam died in the crash, said that investigators told families that it was a BUK missile that hit the plane. The cockpit was hit first and and broke off from the rest of the plane, he told the BBC's Anna Holligan.

Meanwhile in Moscow this morning, Russian arms manufacturer Almaz-Antey presented the results of its own report.

Shaun Walker from The Guardian was at Almaz-Antey's press conference where it said it had conducted an experiment on 7 October with Russian-made BUK missiles. The company says that if it was a BUK missle that hit the plane, it must have been a 9M38 missile and that only Ukraine has these.

Preliminary findings presented in September 2014 said the plane was hit by "high-energy objects from outside the aircraft", fuelling speculation that a surface-to-air missile was responsible.

Image source, Getty Images

Those killed in the crash included 283 passengers - of which 80 were children - and 15 crew members. The country mourning the biggest number of victims is the Netherlands, followed by Malaysia and Australia. Read our piece for more on the victims.

The flight was en route from Amsterdam to Kuala Lumpur and was travelling over the conflict-hit region of eastern Ukraine on 17 July 2014 when it came down. Click here to read more on what we know about the events of that day.

Image source, Getty Images

Welcome to the BBC's live coverage as Dutch authorities release the findings of their report into the MH17 plane crash over Ukraine, in which 298 people died. The Dutch Safety Board will present its findings first to victims' families and relatives and then to journalists at the Gilze-Rijen military base in the Netherlands.