A DERELICT building was declared structurally unsound after being engulfed by flames.

An investigation is under way after the Flowerpot public house, Elm Road, Wisbech, was found to be well alight at 2.20am today.

Four fire crews from across Cambridgeshire were called to the blaze which engulfed the two storeys of the site.

Four jets and one hose reel jet were used to extinguish the blaze.

The site was then assessed as structurally unsound.