Cooperative Bank, Market Street, Watford is under armed siege. Police marksmen everywhere, public areas cleared and a guy inside threatening to blow himself up.
http://www.bbc.co.uk/news/uk-england-beds-bucks-herts-13629679
http://www.guardian.co.uk/uk/2011/jun/02/watford-bank-surrounded-armed-police
As he let the people inside go, including the bank staff I strongly doubt this is a terrorist threat, likely someone whose finances soured and crossed the line in despair after their dreams evaporated.
Its my bank by the way, my branch, and I narrowly avoided being caught up in this myself, and am concerned. The Cooperative is a good bank, and this is a good branch, and I mean that, always nice, always helpful. They even waive fees after they have a cast iron right to charge them, not something banks are known to often do, they have done so to me on no less than three occasions when circumstances were against me such as for early direct debits or my pay being late in causing an unexpected overdraft.
Edit - Update man surrenders to police and is arrested, noone hurt.