Fragments of a suspected Russian missile system have been found at the Flight MH17 crash site in Ukraine, investigators in the Netherlands say.

They say the parts, possibly from a Buk surface-to-air system, are "of particular interest" and could help show who was behind the crash.

But they say they have not proved their "causal connection" with the crash.

MH17 crashed on land held by Russian-backed rebels in July 2014, killing all 298 on board.

Pro-Russian rebels control the area where the MH17 crashed

There were 283 passengers, including 80 children, and 15 crew members on the Malaysian Airlines airliner.

About two-thirds of those who died were Dutch nationals, with dozens of Malaysians and Australians among the rest.

Ukraine and many Western countries have accused pro-Russian rebels of shooting down the plane, saying they could have used a Buk missile system supplied by Russia.

Russia and the rebels deny any responsibility and say the Ukrainian military was to blame.

(Source: BBC)