Two people have been arrested after attempting to gain access to HM Naval Base Clyde, the home of the UK’s nuclear-armed submarine fleet.

The incident was first reported by The Sun, which said two individuals had been detained following an attempted entry at the site.

They did not gain access.

Police Scotland confirmed the arrests, stating: “Around 5pm on Thursday, 19 March, 2026, we were made aware of two people attempting to enter HM Naval Base Clyde.”

A 34-year-old man and 31-year-old woman have been arrested in connection and enquiries are ongoing.”

The Royal Navy said the individuals had “unsuccessfully attempted” to enter the base and did not gain access.

“As the matter is subject to an ongoing investigation, we will not comment further,” a spokesperson added.

HM Naval Base Clyde, located near Helensburgh, hosts the Royal Navy’s Vanguard-class submarines, which carry the UK’s continuous at-sea nuclear deterrent.

No further details have been released regarding the circumstances of the incident or any potential motive.

George Allison
George Allison is the founder and editor of the UK Defence Journal. He holds a degree in Cyber Security from Glasgow Caledonian University and specialises in naval and cyber security topics. George has appeared on national radio and television to provide commentary on defence and security issues. Twitter: @geoallison

19 COMMENTS

    • I agree. Sadly, this is just the beginning. I can see this becoming a massive problem. I am not sure if we have a state or a culture that can deal with it. Everything is fragmenting. But at least these people are stopped and that is something to celebrate.

      • Having once been based at faslane, this comes as no surprise. I used to and still am at the level a visual activ security presence at ALL OF THE NATIONAL MILITARY ESTABLISHMENTS. for example with the exception of the MiD harbour petrol in Portsmouth where the police are carrying weapons l. There’s nothing but a high wall to present a a formidable barrier for any near do well getting 8 to cause mischief. Shore establishments are worse armed sentry on the gate is about all there is a unarmed patrol doing an hourly walkabout, with nothing more than a big stick, a radio and a torch is as useful as a chocolate toaster imagine it being like that in the united ates of paranoia.. it wouldn’t happen. Barrow and our factory on the Clyde are big juicy targets which, if damaged would cause disruption and delays to production of warship construction lasting years it WILL TAKE A SERIOUS INCIDENT TO GET A CHANGE TO THE SECURITY ATTITUDE.

  1. Navy Lookout are reporting that they literally walked up to the gate, asked to be let in, were denied, and then shortly arrested. Doesn’t scream professional Iranian operation.

    • Arrested for what?

      Asking to gain entry to a controlled space? OK technically an offence but the penalty won’t be much.

      It isn’t like they cut the wire or forced entry like the Green Peace mob did years ago.

      • I believe they were (man 34 and women 31) were arrested for: “acting suspiciously around a nuclear weapons site.” This was in the statement released by Police Scotland. The police can now use the terrorist act to detain or arrest people near a nuclear site or weapons site. The Rules of Engagement (ROE) within these sites guarded my MOD Police or RM, are significantly less restrictive in using deadly force.

        • It is all very well talking about RoE but if they were asking at the gate…..

          I agree that these are not locations you want people hanging around making or preparing mischief.

  2. Regardless of ‘ordinary circumstances’, I would have thought that every military base in the UK would have been put on the highest alert, since Trump’s invasion of Iran.

    Well I would bloody well hope so…

  3. It’s a non-story. They walked up to the gate and effectively asked to be arrested. I did notice earlier today that the security at Faslane and Coulport has been stepped up beyond the perimeter.

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