Boeing 737, the Ukrainian passenger aircraft that crashed near Tehran could have been downed by an Iranian missile fired from Tor, the surface-to-air missile system made in Russia. Newsweek reported that, citing a high-rank source in the Pentagon.
Three officials told the news outlet that the attack was incidental.
"Ukraine International Airlines Flight 752, a Boeing 737–800 en route from Tehran Imam Khomeini International Airpot to Kyiv's Boryspil International Airport, stopped transmitting data Tuesday just minutes after takeoff and not long after Iran launched missiles at military bases housing U.S. and allied forces in neighboring Iraq. The aircraft is believed to have been struck by a Russia-built Tor-M1 surface-to-air missile system, known to NATO as Gauntlet", Newsweek wrote.
The outlet also wrote that Iran's anti-aircraft defense was apparently active after the said missile attack on U.S. bases in Iraq.
A worker of Iraqi intelligence and high-rank sources in the American intelligence also confirmed that the downing was non-intentional. It is quite possible that the plane was downed by Russia-made Tor M-1 SAM system. The U.S. military command provided no official comments on the matter.