Boeing announced on Tuesday that it would be pulling support for all Russian aircraft.
This includes sales of spare parts and maintenance support for Russian Airlines, the biggest of which is Aeroflot, Russias flag carrier. The airline operates a fleet of 37 737s and 22 777s.
The company also said it would be temporarily closing its office in Kyiv. The pulling of support comes as tensions and sanctions escalate in the ongoing conflict between Russia and Ukraine.