The Coastguard says it was alerted to reports that a woman wearing a life jacket was missing at sea at 1.30pm this afternoon.
The disappearance followed a collision between a yacht and a dredger, with one other person pulled from the water by a rescue boat before raising the alarm.
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The Royal Marine 'Marine A' is to be released on Friday according to the Justice For Marine A campaign group.
Another chilly day with cloudy skies and some rain sliding from north to south.
A bid by the Government to delay publishing its plans to tackle air pollution until after the election has failed at the High Court.