Authorities say an armed man opened fire in the philosophy department at Charles University, killing at least 15 people and causing widespread panic in one of the Czech Republic's worst mass shootings.

当局说，一名武装男子在查尔斯大学哲学系开枪，造成至少15人死亡，并引起广泛恐慌，这是捷克共和国最严重的大规模枪击事件之一。