Londoners have told those responsible for the terror attack that today's events did not succeed in crushing their spirits and making them afraid.
A defiant trend has popped up on Twitter, as people commuting home and going about their business in the British capital in the wake of the attack tweeted "we are not afraid".
Many shared pictures of a Tube sign Photoshopped to display the hopeful slogan as people from London displayed their stiff upper lip on social media.