The first alarm came just before half past three on Sunday afternoon.
It was then about a grass fire at Nordenbergsskolan in Olofström.
Two hours later, the rescue service was again alerted to basically the same place where it started burning again.
And after another half hour, there was an alarm about a car fire on Idrottsvägen.
- We suspect that these fires may have been started and it is also possible that they may have a connection to each other, says the police's internal commander Robert Bjuvhage on Monday morning.
The police are now looking for witness information from the public.
- If you have seen or heard anything about these fires, you should contact us at the police.