The BBC said it was contacted by “a member of the public, who wishes to remain anonymous”, after he or she found the documents dumped behind a bus stop in the southeastern county of Kent, which borders greater London,. The papers were reportedly in a deteriorated state, as they had been exposed to the elements -including rain- for several days.

According to the BBC, the sensitive documents most likely originated in the office of a senior Ministry of Defense official. They include printouts of email exchanges, as well as a number of PowerPoint slides concerning several timely topics. Among them is a presentation about HMS Defender, a Type 45 Destroyer belonging to the Royal Navy. It is followed by a presentation on the tense maritime incident that took place between Britain and Russia off the coast of Crimea last week.

Another document concerns the defense priorities of the administration of United States President Joe Biden, especially as they relate to the Indo-Pacific region and China. Several emails concern the future of the British military presence in Afghanistan, following the pending withdrawal of US forces from there in September. Yet another set of documents addresses British defense contracts that may irk some of the former European Union member state’s European allies.

The British Defense Ministry said last week it was investigating the details of “an incident” in which sensitive papers were “recovered by a member of the public”. It added that one of its employees, who had been entrusted with the documents, had reported them missing in the days prior to their recovery.