On board the UK's newest attack submarine HMS Astute

The BBC has been given exclusive access on board the Royal Navy's newest and largest attack submarine at the Royal Navy base on the Clyde in western Scotland.

Described as the stealthiest sub ever built in the UK, HMS Astute was commissioned last week and should come into service next year.

The Astute's commanding officer, Commander Andy Coles gave the BBC's Defence Correspondent Caroline Wyatt a look around his vessel's state of the art control room.