Berkshire fire and rescue currently has two appliances at the scene of last night’s fire in Park Street, Windsor.
Crews are standing by in case they are required.
A local authority building control team is carrying out controlled demolition of the houses destroyed in the fire.
When the building has been stabilised, it will then be possible to commence the fire investigation.
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Friday's forecast for the west of the region
Friday's forecast for the east of the region