In the crash’s aftermath, Azerbaijan has unleashed rare and stinging criticism of Russia, with the country’s president saying Moscow’s response has caused “surprise, regret and rightful indignation.”

Azerbaijan's president has confronted Putin over the devastating plane crash that killed 38 people on Christmas Day.

It’s often said that the safest place to sit in a plane is at the back — and the only survivors of the recent Azerbaijan Airlines and Jeju Air crashes were in the rear of the plane. But, say safety experts,

South Korea’s leading low-cost carrier, heavy with debt and its stock already near record lows, is now facing intense public and government scrutiny.

Investigators assessing the survivability of a plane crash focus on five factors: integrity of the aircraft, effectiveness of safety restraints, G-forces experienced by passengers and crew, the environment inside the aircraft and postcrash factors such as fire or smoke.