"The version about a missile striking a plane is not ruled out, but today it is not confirmed... we urge all international partners - especially the governments of the United States, Canada and the United Kingdom - to submit data and evidence relating to the disaster to the commission for investigation into the cause," Zelensky said on his social media page.
Zelensky noted that Ukrainian experts are involved in the investigation of the plane, and he hopes they would provide the details shortly.
Zelensky also held a telephone conversation with U.S. Secretary of State Mike Pompeo on Friday regarding the investigation of the Boeing 737 crash.
"We are grateful for the valuable support of the United States in investigating the causes of the disaster. I met with U.S. Charge d'affaires Christine Quinn and received important information that may help with the investigation," Zelensky said.
Pompeo expressed condolences on behalf of the American people over the tragedy, support and willingness to assist in an impartial investigation.
On Wednesday morning Ukraine International Airlines stated that 167 passengers and 9 crew members were killed as a result of the plane crash of the Ukrainian Boeing 737 aircraft, which was flying from Tehran to Kiev. The airplane crashed at approximately 6 a.m. Tehran Time on Wednesday shortly after takeoff.
Eleven Ukrainian citizens including nine crew members, 82 Iran citizens, 63 Canadians, 10 Swedish, four Afghani, three Germans and three UK citizens were on board the plane.