Russia's main investigative body says the Russian passenger jet that crash-landed at a Moscow airport over the weekend has been taken away for further examination.
For more on this and other news around the world, let's turn to Hong Yoo.
Yoo, start by giving us the latest on this deadly crash.
Well, Mark, no official cause has been given for the Russian passenger jet crash on Sunday where a plane burst into flames as it slammed down on the runway,... killing 41 out of the 78 people on board.
Russia's main investigative body says fragments of the plane have been taken away for further examination.
"The investigative group with the representatives of the Interstate Aviation Committee have taken out all fragments of the burnt airliner from the runway and placed them into a hangar for further laying out and studying. Plus, the investigators and the specialists of the Interstate Aviation Committee are starting the decryption of the flight recorders and the examination of data."
The pilot told Russian news media that a "loss of communication" caused by a "lightning strike" made him decide to return to Moscow's Sheremetyevo Airport just 28 minutes after the plane had taken off.
The Aeroflot Sukhoi Superjet 100 skidded down the runway at the airport, on fire and spilling thick, black smoke.
The plane reportedly did not dump any fuel, unlike many flights that have to land soon after takeoff.
Once the plane had come to a halt, crew members evacuated survivors using emergency slides.
"The evacuation was conducted in 55 seconds, whilst the norm is 90 seconds."
"They mostly have burns, carbon dioxide poisoning, injuries and bruises. But they are all conscious and do not require artificial ventilation."
Russian President Vladimir Putin expressed his condolences and ordered investigators to establish what caused the crash.