The Department of Defence said it cannot locate copies of technical reports from the 1990s which raise concerns about health and safety conditions at the Air Corps headquarters in Casement Aerodrome.

There is growing pressure on the Government to launch an independent inquiry into the exposure of members of the Air Corps to cancer-causing toxins at Casement Aerodrome.

The State is facing further claims that Air Corps staff may have suffered illnesses as a result of exposure to harmful chemicals at Casement Aerodrome.