The MoD says a section of Winterslow Road will be closed during the day for "operation reasons."

Costs have skyrocketed from £530m to more than £3bn and it is set to open 15 years late in 2036.

The defence secretary said the laser could be used to take down Russian drones as early as 2027.

Officials are considering how to replace ageing facilities at Porton Down with PHE labs in Harlow.

One veteran says he was exposed to the nerve agent sarin at the top secret government laboratory.

The Prospect union says a strike would be the first at the laboratory.