TAYCHEEDAH, Wis. — Authorities say two people are dead after their motorcycle crashed into a farm tractor in east-central Wisconsin.

The crash happened about 6:30 p.m. Saturday on U.S. 151 in Taycheedah. According to the Fond du Lac County Sheriff's Office, the motorcycle was trying to pass the tractor and the tractor started turning into a field.

The crash ejected the 49-year-old Chilton man who was driving the motorcycle and his 47-year-old female passenger, also from Chilton.

The Fond du Lac Reporter says Carl Serwe died at the scene. His passenger, Darci Lu Atkins, was airlifted to a Neenah medical center, where she died Sunday. The tractor driver was not hurt.

The sheriff's office says speed and unsafe passing were factors in the crash.