The Iranian aviation authority confirmed on Tuesday that two missiles were fired at the flight earlier this month.

Investigators found that two Tor-M1 missiles were fired at flight PS752, according to an initial report.

It stopped short of blaming the Tor-M1 for the crash, stating, "the impact of these missiles on the accident and the analysis of this action  is under investigation.''

Tehran initially claimed the flight had experienced engine failure,  but later admitted that its military had shot down the plane due to "human error." The flight was mistaken for a "hostile target" amid heightened tensions with the US after its military killed Iran's top general Qassem Soleimani.