A Royal Navy crewman has been killed and another is in a life-threatening condition after a shooting on board nuclear submarine HMS Astute.
A third Royal Navy serviceman was arrested after police were called to Southampton docks where the vessel has been berthed since Wednesday.
The BBC's Jonathan Beale understands that a crew member shot two of his crew mates before being overpowered.
http://www.bbc.co.uk/news/uk-england-hampshire-13014640
I find this quite weird, given the armed forces have such easier access to weapons but I cannot think of a similar case in the UK.