- Ukraine International Airlines says it moved five of its Boeing 737 planes to Spain.
- The airline says its insurer won't cover flights in Ukrainian airspace.
- Other flights have been disrupted due to rising tensions with Russia.
The Kyiv-based carrier said it sent five Boeing 737s to Spain at the request of its aircraft leasing company after it received "an official notification from insurance companies to terminate the insurance of aircraft for flights in the airspace of Ukraine." The carrier has a fleet of 25 planes, according to its website.
Other disruptions resulting from the crisis include KLM Royal Dutch Airlines' announcement on Saturday that it was suspending flights to Ukraine until further notice. Ukraine International Airlines later said it was operating flights on schedule, however
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Ukraine's Infrastructure Ministry said Sunday that the country's air space remains open and that "most airlines continue to operate without restrictions" though it noted some airlines have had problems with insurance providers.
"For its part, the state is ready to support airlines and plans to provide additional financial guarantees to support the air market," it said.
Ukrainian International Airlines' announcement came after another carrier from the country, SkyUp Airlines, said one of its Ukraine-bound flights from the Portuguese Island of Madeira was forced to land in Moldova after the company that leases it jets said the carrier couldn't enter Ukrainian airspace.
"Negotiations with insurers have been difficult, and our foreign partners continue to regularly assess their own risks and monitor the situation," SkyUp's CEO said in a statement Monday. "However, now, with the joint efforts of the Ministry of Infrastructure of Ukraine and the Government, we have managed to achieve results: flights to Ukraine remain safe and secure."