Danny Searle quits after four months in charge of the club, who have been relegated from the National League.
Gas cylinders were removed from the unit as crews "poured water on it from above", the fire service said.
Dan Humphries arrives at the final with sons Liam and George - the 11th round they have been to.
Hannah shares her experience of extreme pregnancy sickness.
Would you crawl through hundreds of metres of mud for charity?
Kevin Bond signs a two-year contract to remain as Southend manager after keeping the club in League One.
Simon Harmer completes a six-wicket haul as Essex beat Nottinghamshire in the County Championship with more than a day to spare.
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