A submariner who published an online dossier of safety concerns about Britain's Trident nuclear programme has handed himself in to authorities in Scotland.
Royal Navy Able Seaman William McNeilly, 25, who is from Newtownabbey in Co Antrim, had claimed that it was easier to get into the sensitive nuclear installations than into "most nightclubs".
He went absent without leave last week after producing an 18-page report containing a series of allegations about the Trident submarines based at Faslane on the Clyde.
He said he went public after raising concerns with his superiors which he claimed were ignored.
It is understood he was detained at Edinburgh airport on Sunday night and is being held at a military base in Scotland.
In his report, which was published online and also sent to newspapers and journalists, Able Seaman McNeilly described himself as an Engineering Technician Submariner who was on patrol with the Trident submarine HMS Victorious this year.
He claimed there are fire risks and leaks on board and that security checks are rarely carried out on personnel and contractors working on the submarines when they are docked at Faslane.
A Royal Navy spokeswoman said: "The Royal Navy takes security and nuclear safety extremely seriously, and we are fully investigating both the issue of the unauthorised release of this document and its contents.
"The naval service operates its submarine fleet under the most stringent safety regime and submarines do not go to sea unless they are completely safe to do so."
The Ministry of Defence said Able Seaman McNeilly will face consequences for being absent without leave but would not comment on whether he will face any sort of proceedings over his Trident report.
