What a difference a day makes.

Yesterday London was united in euphoria following the success of the Olympic bid.

Today I’ve heard words like shock, disbelief, grief, confusion, panic, calm.

First there was talk of power surges on the underground. Then as reports came through of an explosion on a double-decker bus, the horrible truth started piecing itself together.

My heart goes out to the victims of today’s atrocities in central London.

As I walked from Waterloo Station to Marylebone High Street this morning there was an eery hush broken only by the sound of the occasional speeding black cab or motorcycle courier making the most of the empty streets.

For the first time in years I saw people queuing outside public telephone boxes as the mobile network coverage couldn’t cope with demand.

I have also never seen so many people in suits with their heads buried in their A to Z as they navigate their way through the streets on foot.

London looks very odd without its trademark red double-decker buses.

Reading, listening to and watching the news coverage today has really brought home what a remarkable job our emergency services do.

Today London remains united and one thing’s for certain. We will not give in to cowardly acts like this.