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A large window in the newly opened Sayle Gallery has been vandalised and will have to be replaced.
The damage was caused between 9pm on Friday and 3am on Saturday.
The Sayle Gallery was the first business to open in the recently refurbished promenade colonnade, alongside the Gaeity Theatre.
Police are asking anyone who can tell them who was responsible to ring 631212, or the anonymous Crimestoppers number, 0800 555 111.
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