Authorities in Maine have found the body of a skydiving instructor who became separated from his student during a tandem jump.

Officials say 41-year-old Brett Bickford of Rochester, New Hampshire, and his student participated in a jump around 2 p.m. Thursday near Skydive New England in Lebanon. The student called police after he landed safely and couldn’t find his instructor.

Cpl. John MacDonald, spokesman for the Maine Warden Service, says a search team found Bickford’s body shortly before 5:30 p.m., about 750 feet from the Lebanon Airport runway.

Maine Department of Public Safety spokesman Steve McCausland says investigators determined the instructor and student became separated about a mile above the ground. McCausland says the instructor didn’t have a backup parachute.

Both people use the same parachute in a tandem jump. Police aren’t sure how the skydivers became separated.