Chippewa Falls Area School District Superintendent Heidi Eliopoulos sent a message to parents saying counselors, faith leaders and trained school staff would be available Monday at the two elementary schools.
But at about 11:40AM, police told the Star Tribune, a black Ford F-150 pickup careened off-road and slammed into the group of girls.
Two other girls were taken to hospital with critical injuries, however doctors could not save one of the girls, who died several hours later.
A western Wisconsin community is grieving the deaths of three Girl Scouts and an adult who were struck by a pickup truck while collecting trash along a rural highway. But on Saturday morning, a trio of Girl Scouts were killed in a tragic accident as they fulfilled this service-forward motto.
Holding candles and umbrellas, the crowd gathered Sunday evening outside Halmstad Elementary School. The girls were in the fourth grade at Halmstad Elementary School in Chippewa Falls, Wisconsin.
In a statement, the school district wrote, "this is a hard time for our students, families and staff".
The driver - identified as 21-year-old Colton Treu of Chippewa Falls - initially fled the area but later turned himself in. Approximately 15 people were out picking up trash in total when the incident occured.
The driver, 21-year-old Coleten Treu, later surrendered to authorities after police launched a search for the vehicle. He will be charged with four counts of homicide, Sokup said.
The names of the deceased have not been released at the time of this post.
Sokup added an investigation into the crash was ongoing. Sokup also said that it was not immediately known if there were other factors which may have led to the crash.
"It's just devastating. It hits me especially hard since I have two children of my own", Chippewa Falls resident Jill Schafer said.
"Our hearts are broken for the girls and families of the Girl Scouts of the Northwestern Great Lakes".