Students from Durham University have joined a river-side search for missing Luke Pearce, 19.
He has not been seen since a night out with friends in the city on Saturday night.
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Police have arrested eight people after officers executed search warrants across Ashington.
Friends and the families of two football superfans who died in the MH17 disaster will gather at the stadium where they spent happy times.
A total of 298 people, including 10 Brits, died when the Malaysia Airlines flight was seemingly shot down over Ukraine last July.