Stockholm- Sweden : A manhunt is underway for the driver of a large beer truck that plowed into a department store in central Stockholm on Friday, killing at least three and injuring many.

Police released two photos from CCTV surveillance footage of a man wanted in connection to the attack.

Stockholm police denied previous reports that a man had been arrested at the scene, saying that the driver had not been found.

“We have no contact with the person or persons who drove the truck,” Sweden’s top police chief, Dan Eliasson, told a news conference.

Sky News reported that police believed the man had run away towards the subway station. All subway traffic has been halted.

Panic in central #Stockholm today

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Police would not confirm how many people many people had been killed or injured. Local media reports varied from two people up to five.

“Sweden has been attacked. Everything points to the fact that this is a terrorist attack,” Prime Minister Stefan Lofven told reporters during a visit in western Sweden.

In a statement Friday, they said that they cannot exclude this is an act of terror based on other events in Europe.

There was no immediate claim of responsibility for Friday’s attack, but vehicles have been common weapons in recent extremist attacks.