Repairs at 'birthplace of radar' in Suffolk
Urgent repairs are under way off the Suffolk coast to save a building believed to be the "birthplace of radar", the National Trust has said.
The structure has stood empty on Orford Ness for almost 40 years.
It dates from 1918 and was originally an officers' mess, but by 1935 became the base for a British intelligence team working on radar.
The National Trust said it hoped the £130,000 work would help protect the building from the elements.
Grant Lohoar, National Trust countryside manager for the East, said: "It's a hut really, no more than that, but you could argue it's the birthplace of what became known as radar."
All equipment needed for the restoration project has to be brought to the site by ferry, and the pace of the work is dictated by the weather because the site is so exposed, the trust added.
The building will eventually become a new visitor centre and showcase the site's history.