A UNITED Airlines plane has been diverted after the pilot reportedly suffered a heart attack.
United flight 1603 landed in Boise, Idaho just before 8pm local time, locals news website KBO1 2 reported.
The pilot was taken to a local hospital.
His condition is unknown.
There are no reports of injuries to passengers.
The Boeing 737 plane remains in Boise as the airline searches for a replacement pilot to continue to Seattle.
The airline has been contacted for comment.