If you were concerned at the spectacle of thousands of stumbling, bleeding people in central London on Saturday, fear not. It was just the zombie apocalypse.
World Zombie Day takes place in more than 50 international cities to raise money for charity. This year's chosen charity is St Mungo's Broadway and donations can still be made via JustGiving if you didn't manage to find your stash of fake blood in time.
Here are some of our favourite pictures from World Zombie Day 2014. We're actually pretty
terrified impressed by them.