Firas Moussa works in an office in central Gothenburg.
On Thursday, he witnessed how the police arrested the suspected perpetrator who attacked a ten-year-old girl with a knife.
In the afternoon, he was arrested by prosecutors on suspicion of attempted murder.
- When I heard sirens and saw all the roadblocks, of course I got worried and wanted to know what happened, says Firas, who filmed parts of the incident.
A woman was also injured.
According to the police, she is a relative of the girl and was slightly injured when she allegedly tried to stop the perpetrator.
Watch as the suspected perpetrator is arrested and hear Firas tell of what he saw on the scene.