Officers using sonar equipment have carried out a search of the River Ouse and its banks by boat from Naburn upstream to York city centre. The river levels were still deemed too high to conduct an underwater search but police hope this will be possible over the next few days.
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The name was unveiled today by the Northern Powerhouse Minister Andrew Percy.
Harry was world rowing champion who drew thousands to the banks of the River Tyne in the 1850s.