"This is a lie, and no one will assume responsibility for such a big lie," the state-run IRNA news agency quoted him as commenting on reports that the Boeing 737 was allegedly shot down by an Iranian missile.
Rabiei also recommended that the U.S. government monitor the results of the investigation committee instead of lying and developing "psychological operations."
"It is regrettable that the U.S. government's psychological operations system and its informed or uninformed allies are adding salt to the pains of the bereaved families with these lies," Rabiei said.
A Ukraine International Airlines plane (flight PS752), en route from Tehran to Kyiv, crashed shortly after taking off from the Imam Khomeini International Airport early on January 8.
There were 176 people on board the aircraft. All of them died. The crash killed 11 Ukrainians (two passengers and nine crew members), 82 Iranians, 63 Canadians, ten Swedes, four citizens of Afghanistan, as well as three Germans, and three British nationals.
On January 9, Canadian Prime Minister Justin Trudeau said that an Iranian missile had shot down the Ukrainian airliner near Tehran.
Britain said it supported Canada's findings that the UIA plane had been shot down by an Iranian surface-to-air missile.