A student armed with two handguns held 23 other students and a teacher hostage for several hours at a school in Wisconsin before shooting himself.
Police were called to Marinette High School at around 1500 (2100 GMT), after the 15-year-old took over a classroom.
All of the hostages were released unharmed after a five-hour stand-off.
The student shot himself after police officers entered the classroom, police said. He was taken to a hospital, and his condition is not immediately known.
Marinette Police Chief Jeff Skorik said no other injuries had been reported. BBC News
