The Trust has released a statement saying Maria Ball has resigned with immediate effect.
The process for appointing a new or interim chair will be started immediately but in the meantime Paul Remington who is vice chair will lead the organisation with Andrew Morgan, the interim chief executive.
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Fire crews released a woman from an over-turned car after it went off the A12 at Ingatestone in Essex
A very cold day in strong, blustery winds. Wintry showers for much of the day, rain or sleet towards coasts but of snow at times inland.
The wintry weather is continuing across the Anglia region with sleet and snow in many areas. Here is a selection of pictures from viewers.