Around 10 people have been killed in a shooting at an adult education centre on Tuesday (February 4), Swedish police said, the deadliest attack to take place in Sweden on what the prime minister said was a "painful day" for the country, Reuters reports.
The gunman is believed to be among those killed and a search is continuing at the school for other possible victims, the local police chief told a press conference. The perpetrator's motive was not immediately known.
Local police chief Roberto Eid Forest said police believed the gunman had acted alone and that they did not currently suspect terrorism as a motive, though he cautioned that much remained unknown.
Police said they had opened an investigation into murder, arson and an aggravated weapons offence.
The shooting took place in Orebro, some 200 km (125 miles) west of Stockholm, at the Risbergska school for adults who did not complete their formal education or failed to get the grades to continue to higher education. It is located on a campus that also houses schools for children.