The fire starters allegedly set their latest blaze at an apartment building on Perthshire. Since December, HFD has responded to 12 intentionally set fires in the Memorial-Dairy Ashford area.
No one was hurt in Wednesday's fire, but it did damage at least three units.
"To damage other people's houses just for fun, it's not cool at all. It might hurt somebody someday," displaced resident Victor Bernardes said.
Police believe three different suspects are linked to the fires. The youngest is believed to be just 16 years old.
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