This is a different kind of leak. A series of files detailing some of the inner workings of the British Royal Navy’s nuclear-powered submarine the HMS Anson were found inside the bathroom of a pub in England, soon after a busy night at the bar.

The files were found on the floor of a bathroom stall inside the Furness Railway pub in Barrow-in-Furness, not far from the BAE Systems shipyard in the town. The HMS Anson, an Astute-class nuclear-powered attack submarine, was built there.

The story was originally reported by the British tabloid The Sun, was confirmed in part by the British Royal Navy, which confirmed the veracity of the files. In a statement to the press, the Royal Navy said the files “are generic training documents that carry no classified information.”