Iran is trying to analyze the black boxes of airplanes that were shot by its troops on January 8, denying information it would send them to Ukraine.

"We're trying to read black boxes here, in Iran. If that doesn't work, our next option is Ukraine and France, but no decision has been made about sending them to any other country," the company said. IRNA news agency quoted Hassan Rezaifar, director of the accident investigation at the Iranian Civil Aviation Organization.

Tasnim news agency quoted Rezaifar as saying that Iran could not decode the black box aircraft and would send them to Ukraine after Kiev repeatedly requested. It is not clear why he retracted the statement.

Boeing 737-800 aircraft number PS752 of Ukraine International Airlines (UIA) was hit by a rocket after taking off from Imam Khomeini International Airport in Tehran, Iran, on the morning of January 8. Iranian Revolutionary Guards (IRGC) admitted to mistakenly shooting the plane as a US cruise missile, killing 176 people.

Investigators in Ukraine and Canada arrived in Iran, having access to debris of the Boeing and the location of the plane. Canada, Ukraine, Sweden, Afghanistan and the United Kingdom on January 16 issued a five-point cooperation plan with Iran, urging Tehran to allow "foreign officials to have complete and unobstructed access" in the process of investigate the incident of a wrong plane.