A gunman opened fire at an adult education center in the Swedish city of Örebro on Tuesday, killing at least 10 people in what the country’s prime minister called the “worst mass shooting in Swedish history.

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.

Sweden’s worst mass shooting has left at least 11 people dead, including the gunman, at an adult education center as officials warned that the death toll could rise