Police are appealing for information after a fire was reported at flats on St Mary's Street.
We received a call from Hampshire Fire and Rescue Service alerting us to a fire at the flats around 5am on Thursday 23 March.
Residents were evacuated and the fire was extinguished. Some people were treated for smoke inhalation however no one needed hospital treatment.
officers are currently working with the Arson Task Force to establish how the fire started.
If you have any information that could assist this investigation, please contact 101 and quote 44170107941.