
A burning Mi-28N helicopter is seen after crashing in Ryazan, Russia, Aug. 2, 2015. A Mi-28N helicopter crashed in central Russia's Ryazan Region, killing at least a pilot, RIA Novosti news agency reported. (Xinhua/Jia Yuchen)

A burning Mi-28N helicopter is seen after crashing in Ryazan, Russia, Aug. 2, 2015. A Mi-28N helicopter crashed in central Russia's Ryazan Region, killing at least a pilot, RIA Novosti news agency reported. (Xinhua/Jia Yuchen)