Some of London's most famous landmarks were illuminated by the colours of the French flag tonight, in a special tribute to the victims of this week's terror attacks in Paris.
The Tower Bridge, Trafalgar Square and the National Gallery were lit up with red, white and blue light - the colours of the French flag.
Today hundreds of thousands of French people Marched through Paris in an act of solidarity against terrorism.
The marchers were joined by world leaders including David Cameron who had earlier tweeted "we'll march together for our values and those murdered at #CharlieHebdo."
Mayor of London Boris Johnson tweeted plans for the city's show of solidarity with Paris earlier today:
Tower Bridge, Trafalgar Square, the National Gallery & the Eye will all be involved today as London stand w/Paris - nous sommes Charlie— Mayor of London (@MayorofLondon) January 11, 2015
In unity w/Paris we will project Tricolore and red, white & blue lighting across London landmarks today as France marches against hatred— Mayor of London (@MayorofLondon) January 11, 2015
On Wednesday hundreds of people gathered to pay their respects to the victims of the terror attack at Charlie Hebdo's offices at a silent vigil held in Trafalgar Square.
Attendees carried posters emblazoned with "Je Suis Charlie", as well as handwritten sheets while others simply held up pens as a symbol of free speech.