Mareeba police are on the hunt for whoever may have lit a trio of suspicious fires last Saturday.

Emergency services were called to a Walsh Street, Mareeba, home at about 7am on Saturday, May 10, where they found a mattress on fire in the yard.

The blaze was put out with no injuries.

Then, at 7.30am, emergency services responded to a house fire on Couper Street, where the sole occupant sustained minor injuries.

And, about the same time, a small fire was lit in scrubland near lower Byrnes Street, which was quickly put out by an unidentified man in a white ute.