Despite claiming for days that plane crashed due to technical failure before admitting it was a missile, Tehran says officials were acting on 'existing information at the time'

Volodymyr Zelensky's office says president of the Islamic Republic fully recognizes tragedy that occurred 'due to the mistakes of soldiers of this country'

Top French diplomat warns Tehran could get access to atomic weapons within 'one or two years' if accord continues to lose substance

Rouhani warns of 'very dangerous response' if US makes another 'mistake,' while senior military leaders strike more defiant tone, say further 'revenge' will come

National security council official says additional possible causes under consideration include drone or other flying object crashing into plane, terror attack, engine malfunction

Iranian Civil Aviation Organization offers no immediate explanation for disaster; Ukrainian officials have backed off claim it was brought down by mechanical trouble

Qassem Soleimani's killing on Friday 'a major strategic error' by Washington, Rouhani tells French leader Macron in phone call

Tehran says it will not observe curbs on uranium enrichment, stockpiles, research and development, but cooperation with UN watchdog will continue

Japanese PM tells Iranian president that Tokyo 'will patiently continue its diplomatic efforts to ease tensions in the Middle East,' says plans to send warships to region

At Islamic conference in Malaysia, Rouhani suggests creation of special banking and financial mechanism among Muslim nations