The State Aviation Service of Ukraine will hold unscheduled inspections at PrJSC Ukraine International Airlines (UIA), Interavia Ltd., municipally owned Kyiv Zhuliany international airport, and Master-Avia Ltd., which is the operator of the airport's terminals, the service reported on its website.

The inspectors will check if the companies' legal acts and procedures meet flight safety requirements.

The service said it had decided to inspect the companies in connection with recent accidents at Lviv's Danylo Halytskyi international airport on January 15 and at Zhuliany airport on January 16 when the UIA was carrying out its flights.

A UIA Boeing 737-800 plane departing from Lviv to Kyiv on January 15 had to land at Lviv as the smell of burnt plastic had been reported in the passenger cabin, though no source of smoke or fire was revealed.

Another UIA plane was involved in the accident when it was flying from Lviv to Boryspil airport and had to land at Kyiv's another airport, Zhuliany, where it skidded off the runway.

The UIA reported in its press release that the plane was bound for Boryspil but because of the closure of a runway there it had to land at Zhuliany.

"After the landing the aircraft ran off the runway. None of the 134 passengers and five crew members on board has been injured. The aircraft has not been damaged," the press release said.

At the same time, Boryspil denied the closure of the runway, saying it had been working without any restrictions on departures and arrivals.

The second accident made Zhulany close its airport until 16:00 local time on January 16.