People in Sutton St Edmund are being warned about a man driving a white Citroen Berlingo-type van suspected of a possible theft in the village on Tuesday night.
The man, who spoke with an Irish accent, stopped off at a house in Broadgate Road where he claimed to have lost his dog.
But when the home owner asked the man a question, he left and it was then discovered that items were missing from a shed outside the house.
Police have no record of a registration number for the van but the man is described as about 5ft 6ins tall, white and thin in the face.
Anyone with information should call 101.