He will meet Stormont's party leaders and receive a message of condolence from the speaker of the assembly.
Camilla, the Queen Consort, will accompany him, and Prime Minister Liz Truss will join the royal couple at a church service in Belfast.
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King Charles visit: 13 images of preparations in Belfast
By Gemma Murray
Published 13th Sep 2022, 10:12 GMT
Updated 13th Sep 2022, 10:30 GMT