No names or other information about the dead and injured were released, and patrol spokesmen couldn't be reached late Saturday night for further details.

Hot Springs County Sheriff Lou Falgoust told The Billings (Mont.) Gazette that the Scout group had been camping around an area known as Pahaska Teepee.

"The driver of the Honda was around 64 years old," Falgoust said. "They were with a convoy of at least two other vehicles that had made the trip. One was 200 yards ahead and the other was the same distance behind when the accident happened."

The patrol said crash investigators were trying to determine why the car crossed into the oncoming lane.

The motor home had been towing a passenger car.