At a press conference on Thursday morning, Malmö police chief Stefan Sintéus told reporters that the blast was an answer from criminals to police work:
"We think what happened was a response from criminals".
"It shows that the work and pressure we're putting on the criminals means we can unfortunately expect things like this," he added.
Two men were held by police just a couple of hours later, and were arrested by the prosecutor in the early hours of Thursday, on suspicion of "devastation endangering the public".
The men are residents of the city in their twenties, and known for "all kinds of crime" according to police.
"These are people who have had problems at school, lack employment, and have lived in the criminal world for many years. Despite their young age they have come far in the criminal world. It's difficult to work with,”