Sina Finance reported on January 9 that Iran's Civil Aviation Organization said in its preliminary report that it crashed on WednesdayBoeingThe 737-800 attempted to return shortly after takeoff, but the pilot did not report any abnormalities. A few minutes after takeoff, the Ukraine International Airlines flight 752 bound for Kyiv fell from the sky near Tehran, killing all 176 people on board.

According to reports, the plane disappeared from radar at an altitude of 8,000 feet (2,440 meters), and eyewitnesses reported seeing flames in the air before the plane crashed. According to the report, both the flight data recorder and the cockpit voice recorder have been damaged, but the core memory appears to be still accessible.

This is one of the first reports about the wrecked plane. At a time when the situation in Iran and the US is tense, the investigation is bound to be difficult and fraught with intrigue.

There have been conflicting signals about the cause of the crash. The Iranian authorities initially attributed it to technical issues and then said it was an engine fire. The Ukrainian Embassy in Tehran ruled out terrorism and then revised the statement, saying it did not comment on possible causes. Ukraine International Airlines said the company “did not even consider” the possibility of crew errors.

According to the report, the emergency positioning transmitter on board was activated, which meant that the aircraft's satellite antenna was separated from the aircraft during the crash.