Multiple suspicious houses fires have broken out across several parts of Melbourne in the past 24 hours.

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Police informed 3AW Breakfast a vacant house fire broke out on Oak Grove Springvale just after 2am, and another house fire on Alfreda Avenue in Bulleen just before 4:30am.

A car also caught on fire on Nicastro Avenue in Woolert yesterday just after 4:30pm.

No one was injured from the fires, and they are being treated as suspicious with investigations ongoing.

Anyone with any information is urged to contact Crime Stoppers 1800 333 000.

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