Shoeburyness MoD QinetiQ site hit by explosion 5 October 2013 Last updated at 18:20 An explosion at a Ministry of Defence site in Essex is being investigated. The blast happened at about 11:00 BST at a centre for disarming weaponry, run by defence contractor QinetiQ, in Blackgate Road, Shoeburyness. About 10kg (22lbs) of explosives were involved, Essex Fire Service said. No-one was hurt, although four weapons testers had to be rescued from a bunker. The fire service remains on standby and a full investigation is under way, QinetiQ said. Five fire crews were called to the incident at the site near Southend. A fire service spokesman said: "Crews will remain standing by at this incident until specialist scientific teams, who have been called in to deal with the technical aspects of this incident, give them the all clear. Four weapons testers... have been brought to safety by MoD officers in an armoured personnel carrier. A spokesman for QinetiQ said: "No-one was hurt in the incident at our environmental test centre, and we are conducting a full investigation into what happened as is part of our standard safety procedures."