Officers are investigating after damage was caused at Sunderland's Fans Museum during an early-morning break-in.
Northumbria Police received a report of a break-in at the building on North Bridge Street, Sunderland shortly before 2am on Tuesday (February 8).
Police said the front door was forced open by an unknown offender who entered the property.
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Although nothing was believed to have been stolen, those involved caused some damage to the premises.
Posting on Facebook, the Fans Museum said it was "more costs they could do without".
Officers are investigating the incident and are appealing for anyone with information to get in touch.
A spokesperson for Northumbria Police said: "Shortly before 2am on Tuesday we were made aware of a break-in at a premises on North Bridge Street, Sunderland.
"It was reported the front door had been forced open and an unknown offender has entered the property.
"It is not believed anything has been stolen but those involved have caused some damage to the premises.
"Enquiries are ongoing and anyone with information is asked to get in touch using the Tell us Something page on our website, quoting log NP - 20220208-0047."
