A teacher has spoken of her horror after a gunman opened fire at an adult education centre in Sweden.Eleven people were killed in the shooting at the Risbergska School in Örebro, some 125 miles west of Stockholm,

About 10 people including the gunman have been killed at an adult education center in what Sweden’s prime minister called the country’s “worst mass shooting.”

As many as 10 people have died in a shooting at a school in Sweden, police have confirmed. The deadly attack happened on Tuesday afternoon at Risbergska School, an adult education centre, in the city of Örebro, about 125 miles west of Stockholm.