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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Another cold night across Britain with temperatures closely dipping below freezing in rural areas in the north.
People living near a string of gangland shootings are being urged to turn in the gunmen, as police chiefs warned: "Enough is enough."
The RFU's inquiry into what went wrong for England at the Rugby World Cup could be long and painful.