The Ukrainian rebels denied downing Malaysia flight MH17 while rejecting the Dutch-led investigation and dubbing the probe as "biased".

This after the Joint Investigation Team revealed that flight MH17 was shot down by a Russian-made Buk missile launched from a rebel held village in eastern Ukraine.

MH17, which was on its way to Kuala Lumpur from Amsterdam, was brought down on July 17, 2014, killing all 298 people on board.

At the time of the incident, pro-Russian separatists were fighting Ukrainian government forces in the region. The Boeing 777 broke apart in mid-air, flinging wreckage over several miles of fields in rebel-held territory.

A team of more than 100 investigators have been trying to gather evidence in order to unearth the exact reason behind the accident.

The families of the victims have been seeking details over the past two years in the hope that it might eventually lead to prosecutions of the culprits behind the attack.

The prosecutors told a news conference in the central Dutch city of Nieuwegein that the investigative team had identified people who were described as being of interest to them but had not yet been formally identified individual suspects.

It was not clear whether an order had been given for fighters to launch the missile or whether they had acted independently, the prosecutors said.

Meanwhile, Russia has repeatedly rejected any involvement and blamed the Ukrainian military for the tragic act.

Repeating those denials on Wednesday, Kremlin spokesman Dmitry Peskov said: "First-hand radar data identified all flying objects which could have been launched or were in the air over the territory controlled by rebels at that moment."

"The data are clear-cut...there is no rocket. If there was a rocket, it could only have been fired from elsewhere," he said.