A truck has been driven into pedestrians on a Stockholm street, leaving at least three people dead and dozens injured.
The incident took place in Drottninggatan in central Stockholm shortly before 3pm local time (2pm GMT), according to Aftonbladet. It reportedly crashed into a department store on Queen Street, and pictures on social media confirm the truck caught fire.
Sweden's Prime Minister said that one person had been arrested after the attack, however Swedish Police have since claimed no one has been arrested.
Reports have suggested there were 'hundreds of people' running for their lives near the Ahlens mall when the truck ploughed into it. A witness quoted by Aftonbladet reported said the truck ran over at least two people.
A local brewery company, Spendrups, has said they own the truck, and it had been hijacked earlier in the day while the driver was doing a delivery.
Those in the Swedish parliament building, south of where the incident took place, were have been told they were not allowed to leave, while the downtown area was sealed off by security services, and police advised local people to avoid Stockholm city centre.
The police requested that trains to and from Stockholm's central railway station were stopped, according to national railway operator SJ, and the entirety of Stockholm's metro was closed as the authorities tried to get a grip on the situation.
The Prime Minister of Sweden Stefan Lofven, said that everything about the incident indicates this "a terror attack." Terrorists have used trucks and cars to attack pedestrians in London, Nice, Berlin and Antwerp in recent months, but there is currently no suggestion that the Stockholm attack was linked to those events.
There have also been reports of a shooting on a separate street in the Swedish capital, which police are investigating.