Sweden does not allow just anyone to own a gun, so how did Wednesday's tragedy occur? Eleven people were killed in Orebro at a school for adult learners, Risbergska Adult Education Center. Reuters reported that six others were wounded and required treatment at a hospital.

Here's what we know so far. The suspect was unknown to police and they believe he acted alone. Officers said he had no links to gangs and is thought to have acted "without any ideological motive". They also do not believe the attack was motivated by terrorism.

Andersson was said to be a recluse who had maintained little contact with his family for years before tragedy unfolded at Risbergska School in Orebro

Ten years ago Salim Iskef, 29, fled the Islamic State and Syria to form a better, more secure life in Sweden, only to be gunned down this week in the worst mass-shooting in Swedish history. Iskef was one of 10 people in the adult school in Orebro who were killed by the shooter,

Eleven people are dead after a rampaging gunman opened fire at an adult education centre in central Sweden, in what has been called the country’s worst ever mass shooting.Armed police were scrambled to Risbergska School,