A safe containing cash and jewellery was stolen from a caravan in Felixstowe.
The burglary happened between 1.20pm on Friday and 12.30am on Saturday in Carr Road.
A Suffolk police spokesman said the damaged safe and empty jewellery boxes were recovered from the beach nearby.
Anyone with information should call Dc John Kirby at Woodbridge CID on 101 quoting reference FE/15/654, or Crimestoppers anonymously on 0800 555 111.
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