Britain's security threat level has been increased to the highest level, critical, following the bombing at Manchester city's stadium that claimed the lives of 22 people and injured almost 60 others
The announcement came just hours after thousands of people gathered in Manchester's city centre for a vigil.
British Prime Minister Theresa May has addressed the country, explaining what an increase to the security threat level from critical to severe means.
Ms May says the increased security level indicates another attack remains highly likely, and may be imminent.
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