Royal secrets

Prince William spent 3 weeks working in secret with the UK's top security agents at MI5 and MI6

Prince William spent three weeks working in secret for The Security Service (MI5), The Secret Intelligence Service (MI6), and Government Communications Headquarters (GCHQ), Kensington Palace has confirmed.

The Duke of Cambridge worked alongside the UK's Security and Intelligence Agencies to learn how international threats are identified by the country's top spies.

During the placement, which ended on Saturday, William "held his own amongst some highly skilled analysts and operators," according to the Head of Counter-Terrorism Operations at GCHQ.

The duke began his placement at MI6, where he visited officers who work secretly overseas to identify and navigate risks to the country's national security.

His second week was spent working with counter terrorism teams at MI5, while his final week at GCHQ in Cheltenham involved analyzing the use of cutting-edge technology to identify threats.