The king and queen visited the scene of the tragic event that occurred on Tuesday and Swedish flags were flown at half-mast to honor the victims.

Everything we know so far about campus attack which left 11 dead - Sweden’s prime minister said the attack at the Risbergska School was the worst mass shooting in country’s history

About 10 people, including the gunman, were killed on Tuesday at an adult education center in what Sweden’s prime minister called the country’s worst mass shooting. But a final death toll, a conclusive number of wounded and a motive hadn’t yet been determined hours later.

Deadly shooting attack in an adult education center at Campus Risbergska happened on the outskirts of the city of Orebro, which is located about 200 kilometres (125 miles) west of Stockholm. The perpetrator reportedly acted alone.

A yet to be identified shooter stormed a school in Sweden on Tuesday and killed no less than 10 people in what Ulf Kristersson, Sweden Prime Minister has declared as “worst mass shooting in Swedish history”.

Police in Sweden said "about 10" people were killed in a shooting at an adult education school . The shooting occurred at Campus Risbergska in Örebro, Sweden, the city said in a statement. Police say the shooter is believed to have been killed.

Survivors of Sweden's worst mass shooting on Wednesday recalled trying to save the lives of their comrades at a school for adults in Orebro, a day after a gunman killed 11 people on what the prime minister called a "dark day" in the country's history.