The Belfast Castle restaurant has closed at short notice while the council looks to get a new caterer.
On Sunday, December 11, The Tavern and Cellar Restaurant closed with "immediate effect" with a sign appearing on the door telling customers that it would not be open.
Belfast City Council has said that the restaurant has had to "close prematurely" and that affected customers were being contacted.
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It has said that it hopes to have the facility open again as soon as possible and that it is in the process of procuring a new caterer.
A Belfast City Council spokesperson said: "The retail offering at Belfast Castle has had to close prematurely.
"Customers that have been affected by the closure are being contacted.
"We are in the process of procuring a new caterer and hope to have The Tavern and Cellar Restaurant open for service again as soon as possible.”
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