A property in Peghouse Rise in the town was entered.
The back door to the property was smashed to gain entry.
A safe was stolen which contained a range of expensive metals and passports.
It is unclear at this time if anything else is missing.
The property was entered between 7am and 6.30pm on Wednesday, November 12.
Anyone with any information about the incident should call 101 and quote incident number 468 of November 12.
“Please don’t hesitate to call the police if you witness suspicious activity, and always dial 999 if you believe a crime is taking place,” a spokesperson for Gloucestershire Constabulary said.
