'Paris est Charlie': Message on iconic Paris landmark

 Paris's Arc de Triomphe, the huge monument that honours French soldiers who died in the French Revolutionary and Napeoleonic Wars, tonight has the message "Paris est Charlie" projected on it.

The message is a reference to the message "Je Suis Charlie," which was frequently used to show messages of solidarity after the massacre in and around the offices of satirical weekly Charlie Hebdo on Wednesday.

Earlier in the day, the 87-year old French cartoonist Albert Uderzo came out of retirement to pen a new cartoon carrying the message.

Uderzo is the creator of France's much-loved Asterix cartoons.