Police are investigating a suspicious fire which started at Kings Park on Tuesday afternoon.

A crew of nearly 50 worked to get the blaze under control, which was burning right next to the Perth Children’s Hospital.

Credit: ABC News.

It’s believed there were five different ignition points, something Lisa struggled to get her head around on Wednesday.

“Arsonists are a special kind of evil, in my opinion, and there is a special place in hell for you if you are an arsonist,” Lisa said before explaining why she considers arsonists “the worst of the worst of the worst”.

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The majority of the park has reopened, but people should stay alert if they enter the area.

Anyone with information should contact Crime Stoppers on 1800 333 000.

All pics: ABC News