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The Brit Awards will take place on Saturday at Manchester's Co-op Live, hosted by Jack Whitehall.
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Scotland, Wales and Northern Ireland are not affected by this planned walk-out.
這起事件發生前一週，美國也曾出現類似威脅，導致華盛頓特區肯尼迪（甘迺迪）表演藝術中心被疏散。美國媒體報導指出，該威脅同樣針對在當地演出的神韻藝術團。