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A CBS crew on Friday morning visited the Ukraine International Airlines flight 752 crash site west of Tehran, saying that "virtually all pieces of the plane were removed yesterday", according to locals.

"Scavengers now picking site clean," CBS correspondent Elizabeth Palmer wrote on Twitter, posting a picture from the site.

"No security. Not cordoned off. No sign of any investigators," the tweet said.

As UNIAN reported earlier, on January 8, an UIA-operated Boeing 737-800, flight PS752 Tehran-Kyiv, crashed in Iran shortly after takeoff from Tehran Airport.

All 167 passengers and nine crew on board died. On board the airliner were 11 Ukrainians, including nine crew members, as well as 82 Iranians, 63 Canadians, 10 Swedes, four Afghanis, three Germans, and three Britons.

All Ukrainian air carriers have been banned from flying in Iranian airspace pending the investigation.

Read alsoPS752 crash: Ukrainian experts examining Boeing wreckage in Iran say fire didn't start from engines

Canadian Prime Minister Justin Trudeau said Thursday that Canadian officials have intelligence from their own sources and Canada's allies that shows the Ukrainian airliner was shot down by an Iranian surface to air missile.

Ukrainian President Volodymyr Zelensky said the "missile hit" version is not being ruled out, while it is yet to be fully confirmed, and appealed to partners to share the factual evidence that could draw light on the cause of the crash.