1 arrested after deadly Stockholm truck crash

One person has been arrested after a truck crashed into an upscale department store in central Stockholm on Friday, and Swedish radio says the crash has killed threepeople. People in the downtown area are fleeing the scene in panic, - foreign media reported.

Swedish Prime Minister Stefan Lofven said everything indicates that the incident is "a terror attack" and soon after announced the arrest.

Swedish broadcaster SVT says shots have been fired at the scene and the Swedish news agency TT says several people have been rushed away in ambulances.

Live television footage on Friday showed smoke coming out of the upscale Ahlens department store on Drottninggatan Street, which the truck smashed into. The department store is part of Sweden-wide chain. The building includes several stores at street-level.

"We stood inside a shoe store and heard something ... and then people started to scream," witness Jan Granroth told the Aftonbladet daily. "I looked out of the store and saw a big truck."

Swedish police confirmed that a truck drove into people and the store but could not confirm the reports of shots fired. Police said in a statement "there are reports of injured but we have no details on how many and how serious."