Aviation-Safety.net is reporting that a Saratov Airlines Antonov An-148 has crashed east of Moscow with 71 onboard. This is the first large casualty accident for an airline since May 19, 2016 when an EgyptAir flight crashed in the Mediterranean Sea, killing 66.

According to the ADS-B data, which has been downloaded by FlightRadar24, something caused the Saratov flight to suddenly fall at a rate of 22,000 feet per minute (250 mph). I’ll be curious to know if the aircraft broke apart at altitude or if it was intact until impact, because that’s a seriously abrupt drop.

VK.com is currently broadcasting live video from the scene here.

Stock photo of same model aircraft in Saratov livery: