MARINETTE, Wis. — Authorities say a 15-year-old boy who held 23 students and a teacher hostage in a Wisconsin classroom has died at a Green Bay hospital from a self-inflicted gunshot wound.

Marinette Police Chief Jeff Skorik says sophomore Samuel Hengel died at 10:44 a.m. today. Skorik says Hengel, of Porterfield, shot himself as police stormed a classroom at Marinette High School Monday night.

The 24 hostages who were held for several hours Monday afternoon were not injured.