An investigation is under way into the cause of a devastating fire at a derelict former Essex college building.A blaze raged at the old Thurrock Technical College in Woodview Road, Grays, throughout last night from shortly before 8.41pm.Eight fire engines and one aerial ladder platform were dispatched from stations across Grays, Orsett, Brentwood and Corringham to the inferno.Assistant divisional officer Tony Clark said last night: "Crews are continuing to tackle the fire in a derelict...
