An 11-year-old boy has been arrested on suspicion of arson following a fire in Gateshead.
Police and fire crews were called to a residential property in Wetherby Grove on Sunday March 17th.
A 62-year-old man was taken to the RVI in Newcastle suffering from smoke inhalation.
Anyone with information should contact police on the 101 non-emergency number.
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Robert Hodgson, from Stanley, County Durham, committed the offences on the girls, aged as young as five or six, up to the age of 13.