Ukrainian President Volodymyr Zelensky confirmed on Friday that he does not rule out a missile strike as a cause of the deadly crash of a Ukrainian plane on Jan. 8 in Tehran.

In a message posted on Facebook, Zelensky asked the world leaders, who accused Iran of downing the flight of the Ukraine International Airlines in Tehran on Wednesday, to provide Ukraine with the data, confirming the case.

“We keep in constant contact with our representatives [members of investigative commission]. The case of the missile hit is not ruled out, but today is not confirmed. Given recent statements by

Read more: Ukraine examines missile case in Tehran plane crash