Latrobe Crime Investigation Unit detectives have arrested a woman following an alleged series of fires in Morwell this morning.
Emergency services were initially called to a hotel on Collins and Buckley streets about 3.40am after reports of a fire.
A short time later, they responded to another fire at a home on Hopetoun Avenue.
The house was destroyed, however no one was inside at the time.
Emergency services responded to a third fire, also on Hopetoun Avenue, about 6.10am.
The house was vacant at the time.
No one was injured during any of the incidents.
Police have since arrested a 44-year-old Morwell woman, who is currently in custody.
The investigation is ongoing.