At least four people are dead after what investigators are treating as a terrorist attack.

Police say they tried deporting the suspect weeks prior to the attack, but the address on file was not correct.

A 39-year-old man originally from Uzbekistan remains in custody while police investigate an unknown technical device found in the truck.

At least four people were killed and more than a dozen wounded after a stolen truck plowed into a crowded street in Stockholm, according to Swedish authorities.

At least four reported dead and over a dozen people injured after a truck runs through a crowded pedestrian mall, slamming into a department store.

The incident took place near an upscale department store.

Annevi Petersson told the BBC, "I heard the noise, I heard the screams ... there was blood everywhere."

The incident occurred near the department store Ã?hlens.

At least two people were killed Friday after a truck drove into a crowd on a street in Stockholm, according to Swedish authorities.

Sweden's Prime Minister Stefan Lofven said one person had been arrested after a truck drove into a crowd on a street in Stockholm.