Update on the Flight website:
Iranian investigators have disclosed that two missiles from a Tor-M1 anti-aircraft system were fired before the loss of Ukraine International Airlines Boeing 737-800 shortly after departure from Tehran
It has detailed the preparations for the flight to Kiev, stating that the aircraft was replenished with 9,510kg of fuel. But a load sheet calculation showed the maximum weight for the aircraft needed to be 72.5t, and that 82 items in the baggage hold – equating to 2,094kg of the overall 6,794kg of baggage – were offloaded in order to meet the criteria, bringing the 737’s weight down such that it was 32kg below the maximum. This offloading resulted in a delay to the departure. The flight, parked on stand 116R, had been scheduled for 05:15 but the aircraft’s doors were not closed until 05:49. The inquiry says 167 passengers had boarded, with one no-show. Shortly afterwards the aircraft was cleared for pushback and it eventually took off at 06:12 from runway 29R.
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Flight : Two anti-aircraft missiles fired from north towards UIA 737: inquiry