More than 30 Firefighters from Hampshire and Surrey tackled a blaze in Farnborough overnight.
Hampshire Fire and Rescue Service was alerted to a fire at an industrial laundry in Rectory Road at around 3.30am.
Two neighbouring houses were evacuated as a precaution.
Crews remain at the scene and a fire investigation will be carried out to determine the cause of the fire.
Seven fire appliances from Rushmoor, Fleet, Camberley and Basingstoke were mobilised together with the special equipment unit and command support unit from Basingstoke and the multi-role vehicle from Eastleigh Fire Station.
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Julian Cadman, who is thought to have dual British-Australian nationality, became separated from his mother who was injured in the attack.