RUNNING WATER, S.D. (AP) — A Nebraska woman has died after falling into the Missouri River in southeastern South Dakota.

Authorities say 23-year-old Veronica Jo Keeble of Niobrara, Nebraska, fell into the water while she and four others were down near the river by Standing Bear Memorial Bridge.

At least two people jumped into the river to try and save her.

Keeble died at the scene. Two others were flown to a Sioux Falls hospital, one of them with serious injuries.

Authorities believe alcohol was a factor, but have ruled the situation an accident.