About 30 firemen were called to a fire which broke out in a flat above a jewellery shop in Barkingside this morning.
Six fire engines were called to the Allen Irving Jewellers in High Street at 1.45am.
There were no casualties but the incident is being treated as suspicious and there is an ongoing joint investigation by the police and fire services.
A fire brigade spokesman said the fire was brought under control very quickly.
Did you see the fire last night or are you in the area today? Call the newsdesk on 020 8478 4444.
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