Ryanair have apologised to passengers after the airline suspended all flights in and out of Ukraine.
The budget travel company issued an urgent update to customers following Russia's invasion of the nation on Thursday (February 24).
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In a statement, the airline said that all of their flights in and out of Ukraine will be grounded for 14 days, with the sale of flights to be removed for four weeks.
Anyone with a ticket booked on one of the cancelled services has been informed they will receive an email confirmation on Thursday concerning further details.
Ryanair made the decision just hours after Russia's President Vladimir Putin ordered a 'military operation', that saw tanks enter the east of the country.
The Record reports that explosions have been heard across the country, including in the Ukrainian capital of Kyiv.
Following President Putin’s announcement, Ukraine closed its airspace to all commercial flights.
A spokesperson for Ryanair said: “Due to the closure of Ukrainian airspace overnight, and the apparent invasion by Russian forces all Ryanair flights to/from Ukraine have been suspended for at least the next 14 days.
“All affected passengers will receive email notices later this morning and all flights to/from Ukraine have been removed from sale for at least next four weeks until further information becomes available from EU safety guidance.
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“Ryanair remains committed to our services to/from Ukraine and we look forward to restoring flight services there as soon as it is safe to do so.
“We sincerely regret and apologise for these unprecedented disruptions and any inconvenience that they will inevitable cause to our Ukrainian customers.”
Tensions between Russia and Ukraine spilled over during the early hours of this morning as Russian President Putin said that his troops would ‘demilitarise and de-Nazify’ its neighbouring country.
Ukrainian President Volodymyr Zelensky declared martial law in Ukraine shortly after Putin’s announcement.
The first missiles were reported to have fallen on military bases across Ukraine at around 5am local time.
Huge explosions have since been heard ringing out in the capital of Kyiv and the eastern city of Kharkiv.
A number of people have reportedly died following President Putin’s declaration of war on Ukraine.