A message scrawled on a bathroom mirror resulted in a flight between Hawaii and California being diverted this week. Another flight between the two states was also halted due to a bomb threat.

A United Airlines flight from Honolulu to L.A. returned after a bomb threat was found written on a lavatory mirror.

The flight, carrying 339 passengers and 10 crew members, was forced to turn back to Hawaii about an hour and a half after taking off.