The hunt for an armed robber who hit a Weymouth Post Office and then threatened a police officer with a gun has spread across Dorset.

Police are searching for suspect twenty-five year old Colin Douglas, who it's believed is responsible for the robbery on Wednesday afternoon.

He's white, six foot, with short dark hair and a tiger tattoo on his left arm - people in Bournemouth and Poole are asked to contact Dorset police if they've seen Douglas, but not to approach him.