A student at the education centre in central Sweden has recalled how she and others tried to help one of the victims of what would turn out to be the worst school shooting ever to happen in Sweden.

The gunman’s motive, as well as the number of wounded, had not been determined by early Wednesday as Sweden reeled from an attack with such bloodshed that police early on said it was difficult to count the number of dead among the carnage.

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.