Hundreds of mourners are attending the funeral of an amateur boxer who died at a house party in Hartlepool.
Mark Denton was attacked on New Year's Eve.
The service is being held at The Borough Hall in Hartlepool, where some of his matches took place.
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The threat level has been raised to critical by MI5's Counter-Terrorism Analysis Centre.
Prime Minister Theresa May announced the decision from Downing Street.
Newcastle Central Mosque is welcoming Muslims and non-Muslims alike this evening to stand in solidarity with the people of Manchester.