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.

Acting President Choi Sang-mok orders an extensive probe into the crash and the country’s airline safety systems.

The crash of Jeju Air flight 7C2216 on Sunday marks the deadliest ever on South Korean soil and the worst involving a South Korean airline since a 1997 Korean Air Lines crash in Guam that killed more than 200.