A former student killed 10 people and then himself in a shooting in Graz on Tuesday, the police said. The authorities said a pipe bomb and a “farewell letter” were found at the shooter’s house.

Nine students were killed — six girls and three boys aged between 14 and 17, one with Polish citizenship — as well as a teacher, police said. Another 11 people were wounded.

Officials in Austria say a school shooting has left at least 10 people dead in the European nation's second-largest city, Graz. The shooter is also dead.