SAS officers could be flouting strict security and secrecy rules, after photographs which appeared to have been taken from frontline operations emerged on Facebook.
SAS soldiers must sign non-disclosure agreement when they join, preventing them from revealing operational details.
They are also banned from sharing details of the TTPs – tactics, training and procedures.
But according to The Daily Star, an unknown group of soldiers have been posting pictures showing weapons and equipment on a Facebook page.
There are more than 2,000 photographs of military dogs, equipment worn during combat operations, brand new weapons and several SAS troopers posing for the camra on the page.
Over 21,000 people follow the page, but a former SAS source told the newspaper that it is likely to be shut down.
The source said: ‘The images on this site are current and genuine. These are not mock pictures – they’re the real deal.
‘Sometimes younger blokes want to see the profile of the regiment raised, but these guys have gone off-grid.
‘The MoD have been looking at this and I predict it will be closed down.’
One image shows troops carrying Colt Commando assault files.
Another shows a soldier with a Fairbairn Sykes commando knife strapped to his chest.
This could mean they may be from the Special Boat Service.
A Ministry of Defence spokesperson said: ‘We are aware of an incident involving soldiers sharing images online.
‘We expect the highest standards of behaviour from our personnel at all times, whether on or off duty.
‘If any action by service personnel are deemed to breach values and standards, they are treated very seriously and there are a number of sanctions available to the chain of command up to or including discharge.’