- It shook and sounded something devilish, says a woman living in the building where the explosion occurred. She feels worried about what has happened and wants to be anonymous.

Hear more about her experiences in the video above.

Security walk on Monday

The safety walk in Rönninge has been planned since before, but after Saturday night's explosion it will be further strengthened.

"We will strengthen with extra participants from the municipality so that we can answer questions," says Lennart Kalderén (M), chairman of the municipal council in Salem.

The walk starts at 18.00 in Rönninge gymnasium.

- We have safety walks once or twice a year. Then the public can lift what you feel is unpleasant or threatening and we take in tips, views and answer questions. I suspect that it will be some of the youth gangs that gather there, says Lennart Kalderén (M).

No person arrested for the act and the police are investigating what may have happened. Crime breakdown is a pernicious destruction.