Horror at Swedish school as sword-wielding man kills teacher and pupil

UPDATED 16:46: A teacher and a pupil have died and two other victims remain in critical condition after a terrifying attack on a school in Sweden. A masked man armed with a sword is said to have entered the Kronan school in Trollhättan, west Sweden this morning, causing chaos as horrified students ran screaming from the building and hid in classrooms. Police responded to emergency calls, firing two shots at the attacker and detaining him, but not before he stabbed a teacher to death. The attacker has since died from his injuries. A statement from the hospital earlier today said: "We have four seriously injured patients. All are in surgery right now. One is a teacher and two are students. One is 11 and one 15 years old. They have knife wounds. "One of the injured is the suspected culprit. He is being operated on for gunshot wounds. A teacher died at the scene."