The Tor-M1 missiles were launched at the Kyiv-bound Boeing 737-800 jetliner from the north, according to the report.

The report further said that the plane took off from Tehran at 6:12 a.m. local time and lost all contact with air traffic control at 8,100 feet.

Aircraft disappeared from secondary surveillance radar screens at 6:15 a.m. and from primary surveillance radars at 6:18 a.m, the report added.

French and US accident investigation agencies have refused to send necessary equipment to Iran for decoding the black boxes.

Last week, US President Donald Trump has strongly denied allegations he ordered a campaign pressuring Ukrainian officials to investigate the business dealings of former vice president Biden and his son, part of the impeachment inquiry that will formally read out charges facing the president in the Senate.

The Kiev-bound UIA Boeing 737, crashed shortly after taking off from Tehran on January 8, killing all 176 people on board, mostly Iranian and Canadian citizens. The caskets were to remain for a while at the airport terminal so that relatives and members of the airline could say their last goodbyes.

Tehran admitted it had mistakenly shot down the plane several days later. Ukraine’s leader has demanded that Iran punish those guilty for the downing of the airliner and compensate the victims. Iran’s Prime Minister Hassan Rouhani had tweeted that the country ‘deeply regrets’ the ‘disastrous mistake.’

On January 12, Iranian President Hassan Rouhani promised a further investigation into the circumstances surrounding the plane crash while having a telephonic conversation with Canadian Prime Minister Justin Trudeau.

Boeing said in a recent statement that monthly production of planes will drop from 52 to 42 from mid-April. The model involved in the two accidents — 737 Max — triggered the recent decision to halt that specific model.

A lot of countries, however, have banned the plane as a result of its failure. Narrowing the reason for the crashes to the fault of the anti-stall system’s malfunctioning.

Just six minutes after the Ethiopian Airlines 737 Max took off, it crashed, killing 157 people on board.

The same model which was also flown by the Indonesian Airline Lion Air crashed into the sea just five months ago, and not too long after take-off from Jakarta, killing a total of 189 people.

In preliminary findings, the issue causing the planes to nose-dive repeatedly was that the pilots had wrestled with the anti-stall system known as the MCAS.

Here’s what Chief Executive Officer Dennis Muilenburg said in response to the tragic incidents,
“We now know that the recent Lion Air Flight 610 and Ethiopian Airlines Flight 302 accidents were caused by a chain of events, with a common chain link being erroneous activation of the aircraft’s MCAS function. We have the responsibility to eliminate this risk, and we know how to do it.

“As we continue to work through these steps, we’re adjusting the 737 production system temporarily to accommodate the pause in Max deliveries, allowing us to prioritise additional resources to focus on software certification and returning the Max to flight.”