Iran's airspace will remain closed until Tuesday, 2pm local time, informed Majid Akhavan, spokesperson for the Islamic Republic's Ministry of Roads and Urban Development, reports IRNA news agency.

"Due to the latest developments and for the safety of passengers and flights, the country's airspace will be closed until Tuesday at 14:00 [local time]. Compatriots are strongly advised to refrain from visiting the country's airports and follow news about the status of flights only from official sources," Akhavan said.

Early Sunday morning, US President Donald Trump announced that the US military had successfully attacked three Iranian nuclear facilities—in Fordow, Natanz, and Isfahan. Trump added that Tehran must agree to end the conflict. Israel has been carrying out daily strikes on Iran since June 13 as part of its operation against Iran's nuclear program.