KITCHENER -- Police officers are investigating a pair of suspicious fires in Kitchener and Waterloo.

According to police, one fire was set in an apartment stairwell in the area of Heritage Drive in Kitchener. Fire officials say that fire was put out and the building was ventilated.

Police say they believe a suspect set fire to personal belongings in the stairwell before fleeing the building.

The suspect is described a heavy-built man who was wearing a large winter jacket, black shoes and carrying a duffel bag.

No one was injured in that fire.

The other fire was set in a dumpster around Bearinger Road in Waterloo.

"The fire was extinguished by Waterloo Fire and Rescue and it is believed to have been sit intentionally," said Const. Andre Johnson with WRPS. "But fires, as we know, can spread very quickly and it does pose a significant risk to public safety."

Offcials say they don't believe the fire in Kitchener is connected to any others.

Anyone with information is asked to contact police or Crime Stoppers.