Hawaiians were just starting their day when an emergency alert hit local airwaves around 8 a.m. Saturday morning, warning of an "inbound" ballistic missile threat.
"If you are indoors, stay indoors.
The alert warned residents to stay "well away from windows" and "lay on the floor" of their cars if driving.
Local officials and the U.S. Pacific Command have since confirmed that the emergency alert was sent out in error to residents of the island chain, which recently tested out a Cold War-era nuclear warning siren in response to North Korea's missile and nuclear weapons programs.
The Federal Communications Commission is conducting a "full investigation" into the false ballistic missile alert.