Officials from Canada, Ukraine, Sweden, Afghanistan and UK meet in London to find a way to persuade Tehran to give them full access to all the details surrounding accidental downing of a plane from Ukraine International Airlines in Iranian airspace a year ago.
They are also discussing the claim for compensation for the families of the victims.
Each of the countries had citizens on board the doomed flight. All 176 passengers were killed.
A statement released by the group said they were seeking “a full and thorough explanation … including
concrete steps to ensure that this does not happen again ”.
He added: “Our countries will hold Iran to be held to account for justice and to ensure that Iran provides full reparations to the families of the victims and to the affected countries. ”
In Tehran, military prosecutor Gholam Abbas Torky told state television that 10 Revolutionary Guards had been disciplined, including dismissals or demotions, and would soon be on trial.
However, he did not give a deadline.
Revolutionary Guards say they mistakenly shot down Ukraine International Airlines’ plane soon after
take-off, mistaking it for a missile, at a time when tensions with Washington were high following the American assassination five days earlier of the general Qassem Soleimani.
Iran last week said it had allocated $ 150,000 (£ 108,000) to the families of each victim.
Ukraine on Friday urged Iran to pay full compensation to families, without indicating an amount. He has
previously requested that the amount of compensation be negotiated.