POLITICAL CARTOONISTS around the world are tweeting powerful cartoons in response to today’s massacre at French satire magazine Charlie Hebdo, in which 12 people were killed.

Three masked gunmen entered the offices of the publication in Paris this morning – two police officers and ten staff were killed, including three of the magazine’s cartoonists and its editor, Stephane Charbonnier (known as ‘Charb’).

Here are just some of the heartbreaking tributes to the staff of Charlie Hebdo, tweeted by their fellow cartoonists.

1. David Pope of The Canberra Times

2. French artist Nono

“Died for the freedom of expression: Cabu, Wolinski, Tignous, Charb.”

3. Dutch cartoonist Ruben L. Oppenheimer

4. Plantu, of Le Monde and L’Express

“My heart is with Charlie Hebdo.”

5. French cartoonist Boulet

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“Ducks will always fly higher than guns.” (‘Canard’ is French slang for ‘newspaper’.)

6. Zep, cartoonist for Le Monde

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“Cabu, Wolinski, Tignous, Charb/A death stupid and mean…”

7. Chilean artist Francisco J Olea

8. Jean Jullien

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9. Neelabh Banerjee

10. Carlos Latuff

11. Martin Vidberg

The tweet reads “How can I draw today? How can I not draw today?”, while the text of the cartoon says “Today I am an editorial cartoonist. Today I am a journalist. Today I draw for Charlie Hebdo.”

12. French artist Cyprien

13. Bernardo Erlich

“The world has become so serious that humour is a risky profession.”

14. Tommy Dessine

Jesus is depicted saying: “Oh no… Not them…”

15. Loic Sécheresse

Read: Manhunt for gunmen in Paris after twelve killed in massacre at satirical magazine offices>