Syrians were among the 11 killed during the attack in Örebro on Tuesday

People of several nationalities were among the 11 killed at a school in Sweden’s worst mass shooting, police have said.

Anna Bergqvist, who is leading the police investigation, said people of “multiple nationalities, different genders and different ages” were among those killed by a lone gunman at Campus Risbergska, an adult education centre, in the city of Örebro on Tuesday.