The alarm came at half past three and when the police and rescue service arrived at the scene, it burned heavily in two cars.
Before the fire could be extinguished, three more cars were badly damaged by fire.
The police have drawn up a report of vandalism.
- We can not see any natural reason why it started to burn, says Kim Hild, press spokesperson for the police.
Recently, there have been car fires in several places in Malmö.
No one was injured in the fire.