Some Delta Air Lines passengers are recovering after a pressurization issue on a flight from Salt Lake City to Portland caused bloody noses and other issues, according to airline and passenger statements.

Authorities are investigating a flight that turned around after the aircraft did not properly pressurize. Passengers bled from the ear and nose, local media said.

The Federal Aviation Administration is investigating after a Delta Air Lines flight with pressurization issues left some passengers with bleeding eardrums, headaches and bloody noses

The FAA is launching an investigation into a Delta Airlines flight that was diverted back to Salt Lake City on Sunday.