A 70-year-old woman from rural Nicollet, Minn., was killed Friday in a car-motor home crash in Blue Earth County.

According to the Sheriff’s Office, Mary Louise Blank died at 3:41 p.m. when the car she was driving north on County Road 50 collided with a motor home westbound on County Road 11 in Judson Township.

Blank died at the scene. Roger D. Baertsch, 57, of Carver, Minn., who was driving the motor home, suffered minor injuries. He had two passengers, Erik J. Johansen, 32, of rural Lake Crystal, and Baertsch’s 9-year-old grandson, whose name was not released. Johansen was not hurt, but his grandson suffered minor injuries.

The intersection where the crash occurred is controlled by stop signs for north- and southbound traffic on County Road 50. The Sheriff’s Office and State Patrol are investigating.

On Thursday, a Richfield man died when he failed to navigate a roundabout and rolled his vehicle in southern Scott County, authorities said.

Witnesses told authorities that the 61-year-old man had been driving erratically just before he arrived at a roundabout at Pillsbury Avenue and Deuce Road in New Market Township about 2:30 p.m.

The victim, whose name has not been released, drove over the center median instead of following the circular road around. He entered the northbound lane of traffic on Pillsbury Avenue, where he rolled his 2011 Toyota RAV4. The car came to rest upside down in the northbound lane, said Scott County Sheriff Luke Hennen. The man died at the scene.