Sweden’s prime minister said the attack at the Risbergska School was the worst mass shooting in country’s history

Officials in Sweden have vowed to determine why a man killed 10 people, and apparently himself, in an unprecedented attack that's shaken their "society to its core."

Sweden's right-wing government said on Friday it would seek to tighten gun laws in the wake of the country's deadliest mass shooting at an adult education centre where the attacker appeared to have used several of his own licensed rifles.

As many as 10 people have died in a shooting at a school in Sweden, police have confirmed. The deadly attack happened on Tuesday afternoon at Risbergska School, an adult education centre, in the city of Örebro, about 125 miles west of Stockholm.

The shooting was at Campus Risbergska - a type of school for adults known as Komvux in Swedish, which is primarily for people who did not finish primary or secondary education. There are other schools also on the campus. Teachers have described hearing shots ring out, leading to them fleeing classrooms or barricading themselves inside.

One day after the killings at an adult educational center, some gathered to lay flowers and come to grips with the violence.

Police were alerted to a shooting at a school in Sweden just after noon local time on Tuesday, Feb. 4, according to multiple outlets. At least five people have been confirmed shot and the public has been warned to avoid the area,

Sweden's right-wing government said on Friday it would seek to tighten gun laws in the wake of the country's deadliest mass shooting at an adult education centre where the attacker appeared to have used several of his own licensed rifles.

Police confirm seven women and three men - aged between 28 and 68 - were killed in the country's worst mass shooting.