Campaigners marking the location of undercover factories that helped build the Spitfire during the Second World War have unveiled another blue plaque.

Production of the famous fighter aircraft was switched to more than 30 sites in and around Southampton after the Vickers Supermarine buildings at Itchen and Woolston were bombed in 1940.

The Spitfire Makers Charitable Trust has embarked on a project to locate the sites and honour their contribution to the war effort.

The latest plaque commemorates the machine shop and tool room that was set up in what was Lowther’s Garage in Park Street, Shirley.

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Ian Paull, the son of Lowther's owner, John Glencoe Paull, carried out the unveiling. He was joined by Mervyn Jupe, son of Charles George Jupe, a Supermarine machinist who was transferred to Lowther’s after the factories were destroyed.

The ceremony was attended by people living in Park Street flats managed by the Hyde Association, which funded the plaque.

Sam Collins, the Hyde Group's area manager, was joined by the chairman of the Spitfire Makers, Alan Matlock, and members of the Southampton U3A Local History Group.

Mr Collins said: "The Hyde Group are pleased to support the Spitfire Makers in getting this amazing story, of how Spitfire production continued, to be more widely known."

The Spitfire was designed by R J Mitchell, who lived at Russell Place in Portswood.

His iconic creation played a key role in the Battle of Britain, Germany's unsuccessful attempt to destroy the RAF and thus pave the way for a Nazi invasion.

The Spitfire Makers secured funding for half the 30 plaques it plans to unveil but says getting permission to put them up is proving more challenging.

Anyone interested in getting involved with the project can contact the group via its Facebook page or website.