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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After some heavy rain, it will clear and become drier, brighter and warmer later. Top temperatures of 19°C
East Anglian rivals to play over two legs, starting at Portman Road.
Cloudy and breezy with occasional and mostly light rain during the evening. Minimum temperatures of 6 degrees C.