An air ambulance was spotted attending an incident in a Norfolk town. 

People living in Diss, in south Norfolk, saw the emergency helicopter land at the Mere on Park Road at around 7.30pm. 

Witnesses also reported a large emergency service presence, including police and the East of England Ambulance Service, at the nearby Morrisons supermarket. 

UPDATE: Person dies following medical emergency at Morrisons

The air ambulance was spotted at Diss MereThe air ambulance was spotted at Diss Mere (Image: Harry Frazer)

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The air ambulance was seen leaving the area at 7.45pm (on Thursday).

Emergency services have been contacted for more information.