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.”

The shooting is believed to have taken place at Campus Risbergska, which caters for students over the age of 20 in the town of Orebro.

Around 10' dead after shooting at adult education centre in Orebro, say police - Sweden's prime minster says the tragedy in Orebro is the worst mass shooting the country's history