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.”

Police in Sweden said Tuesday that "about 10 people" were killed in a shooting earlier in the day at a school for adults in the city of Orebro, west of Stockholm. The police offered very little information on the incident throughout the most of the day,

Shooter responsible for Sweden's deadliest mass shooting earlier this week was linked to the adult education center where he opened fire, using at least one rifle-like weapon, according to law enforcement officials on Thursday.