YANKTON, S.D. — Police say four people have been detained in the death of a 17-year-old girl who took her own life in Yankton.

Authorities say the girl died early Wednesday of a self-inflicted gunshot wound. She was pronounced dead at Avera Sacred Heart Hospital.

Yankton Police Chief Brian Paulsen says another 17-year-old girl and four males, ages 18 to 20, are expected to face “ancillary charges” in connection with the shooting. Police provided no further details.