Iran’s minister of road and urban development has dismissed as "untrue" rumors that suggest the Wednesday crash of a Ukrainian airliner was because of a missile attack, as the incident coincided with the launch of Iran's missiles against a US base in Iraq.
Mohammad Eslami said the Boeing 737-800 aircraft crashed after encountering a technical malfunction.
Eslami said Iran will not hand over the black boxes recovered from the crash site to Boeing or any other countries.
According to the minister, Iranian technicians and experts from the American aerospace company Boeing will recover data from the black boxes in Iran.
"There are rumors that a terrorist attack, explosion or shooting at the plane may have caused the incident, but they are not true. Technical failure has been the cause of the incident," Eslami said.
"Had the rumors been true, the plane must have exploded up in the air, but that has not happened, because the plane caught fire due to technical failure. That first caused its communications and control systems to stop working, and subsequently resulted in its crash," he added.
These have been witnessed and confirmed by eyewitnesses as well, the minister said.
The Ukraine International Airlines flight, en route to Kiev and carrying mostly Iranians and Iranian-Canadians, crashed hours after Iran fired missiles at bases housing US forces in Iraq, leading some to speculate that the plane may have been hit.
Meanwhile, foreign intelligence sources also believe that the crash - which killed all the 179 on board - was likely caused by a technical malfunction.
Five security sources - three Americans, one European and one Canadian - who asked not to be named, told Reuters that based on initial assessment of Western intelligence agencies, the plane had suffered a technical malfunction and had not been brought down by a missile.