Arson investigators are asking for the public's help in solving three arson cases in 21 days in the McKinley neighborhood of north Minneapolis.

The most recent fire lit a garage at Tuesday evening, and was the second involving a garage, police said in appealing for tips..  The third fire was set at the rear of a house in the early hours Tuesday. Investigators  said that another garage fire remains unsolved in the neighborhood from November.  Damage estimates were not immediately available.

The fires for which locations have been reported cluster near 33rd and Bryant Avenues N.

Police asked people with information on the fires to call Sgrt. Sean McKenna at 612-673-3389 or the arson hotline at 1-800-723-2020.