Authorities say the lone survivor of a mid-air crash of two medical helicopters has died at a hospital.

Police and officials at Flagstaff Medical Center say 36-year-old James Taylor died Friday.

He was a registered nurse flying on a helicopter taking a patient from the Grand Canyon to Flagstaff.

The aircraft collided with another helicopter Sunday in a wooded area about a half-mile from the hospital.

Authorities are still investigating the crash. The death toll is now seven.