It was not immediately known on Friday what caused the explosion, but there were a number of gas tube inside the fast food kiosk and the blast caused a fire which burned the building to the ground.
“It was a really loud blast. I thought my windows would break,” a witness told Aftonbladet.
There was hardly anything left of the kiosk on Friday. Photo: Tove Eriksson/TT
Police questioned several witnesses overnight and said the area around the building would remain cordoned off on Friday morning for a forensic investigation, which they said would affect traffic in the area.
Nobody was injured in the blast, which happened at around 1.30am.
The fire was extinguished shortly after 3am.