Police search for bombs ahead of royal wedding
Officers have been checking under manhole covers and hunting inside traffic lights for any hidden bombs or weapons on the route the bride and groom will travel between Buckingham Palace and Westminster Abbey for the wedding.
The couple will travel in separate cars to the abbey, but return along the procession route together in an open-topped horse-drawn carriage, waving to the crowds, and then appear on the balcony of the palace with the rest of the royals.