A man holds a giant pencil as he takes part in a solidarity march (Marche Republicaine) in the streets of Paris on January 11. French citizens were joined by dozens of foreign leaders, among them Arab and Muslim representatives, in a march on Sunday in an unprecedented tribute to this week's victims following the shootings by gunmen at the offices of the satirical weekly newspaper Charlie Hebdo, the killing of a police woman in Montrouge, and the hostage taking at a kosher supermarket at the Porte de Vincennes. #

Members of Sydney's French community gather in the heart of the city to pay tribute to the Paris jihadist attack victims, just meters from the scene of a deadly cafe siege last month in Sydney, on January 11. Hundreds of people linked hands and displayed "Je Suis Charlie" and "Freedom" placards as they paid their respects, led by French ambassador Christophe Lecourtier, marching in silence down Martin Place during the "No fear, no freedom" rally, despite persistent rain. #

A girl holds up a sign that reads, "I am Charlie", during a demonstration for peace and respect in Stockholm on January 11. The rally is organized by Reporters without Borders and Swedish cartoonists in tribute to the 17 victims of the three-day Islamist killings in Paris, which started at the offices of French satirical news weekly Charlie Hebdo on January 7. #

In Buenos Aires, people march towards the French Embassy to pay tribute to the victims of the shootings by gunmen at the offices of the satirical weekly newspaper Charlie Hebdo, the killing of a policewoman, and the hostage-taking at a kosher supermarket in Paris, on January 11. #

A woman holds a sign that reads, "I am Charlie" in Chinese and French, during a protest against terrorism, and in solidarity with the victims of a shooting by gunmen at the Paris offices of the satirical weekly newspaper Charlie Hebdo earlier this week, in Beirut, Lebanon, on January 11. #

People hold placards reading in French "I am Charlie" behind a french flag during a public show of solidarity at Plaza del Sol in Madrid on January 11 and to protest against three days of bloodshed triggered by an attack on French satirical weekly Charlie Hebdo. #

People march holding signs reading "je suis Charlie" ("I am Charlie'') in front of the White Tower, the symbol of the city, in Thessaloniki, Greece on January 11 in tribute to the 17 victims of a three-day killing spree by homegrown Islamists, in France. #

People gather in Saint-Denis-de-la-Reunion on the French overseas island of La Reunion on January 11 following three days of terror and twin siege dramas that claimed 17 victims in Paris on January 7. #

People gather in Trafalgar Square to show their respect to victims of the terrorist attacks in Paris on January 11 in London. Landmarks including Tower Bridge, Trafalgar Square and the National Gallery are to be lit in the blue, white and red colors of the French national flag later today in tribute to the 17 people killed in the Paris terror attacks. #

Turkish journalists hold picture of late French cartoonists on Istiklal avenue in front of the French consulate during a rally organised by Turkish journalists after Paris attacks on January 11 in Istanbul. #

People watch as the facade of the French embassy is illuminated with a light installation reading 'Je suis Charlie' (I am Charlie) during a rally in tribute to the 17 people killed in the terror attacks in France and in support of press freedom in Berlin on January 11. #

Israelis, mostly French Jews, hold signs that read "I am Charlie," "Israel is Charlie" and "I am a Jew of France" during a gathering in the Municipality in Jerusalem, Sunday, January 11. #

French residents in Japan hold a minute of silence at the Institut Francais in Tokyo on January 11, to pay tribute to the victims of the Charlie Hebdo attack that killed 12 people in Paris on January 7. Over 150 residents gathered at the school to hold a memorial service for the victims. #

People place pencils on the ground in the War reporters' Memorial during a Unity rally Marche Republicaine on January 11 in Bayeux, northwestern France, in tribute to the 17 victims of the three-day killing spree. #

A woman has taped her mouth displaying the word Freedom on the tape, as she gathers with several thousand people in solidarity with victims of two terrorist attacks in Paris, in front of the Brandenburg Gate near the French embassy in Berlin on January 11. #

French President Francois Hollande (right) welcomes German Chancellor Angela Merkel at the Elysee Palace before attending a Unity rally Marche Republicaine on January 11 in Paris in tribute to the 17 victims of a three-day killing spree by homegrown Islamists. #

Greek Prime Minister Antonis Samaras, Spanish Prime Minister Mariano Rajoy, British Prime Minister David Cameron, Danish Prime Minister Helle Thorning-Schmidt, European Union foreign policy chief Federica Mogherini, Paris Mayor Anne Hidalgo, European Commission President Jean-Claude Juncker, Israeli Prime Minister Benjamin Netanyahu, Malian President Ibrahim Boubacar Keita, French President Francois Hollande, German Chancellor Angela Merkel, European Union President Donald Tusk, Palestinian president Mahmud Abbas, Jordan's Queen Rania, Jordan's King Abdullah II, Italian Prime Minister Matteo Renzi, Turkish Prime Minister Ahmet Davutoglu, Ukrainian President Petro Poroshenko and other guests march during the Unity rally Marche Republicaine on January 11 in Paris in tribute to the 17 victims of a three-day killing spree. #

Charlie Hebdo newspaper staff, with editorialist Patrick Pelloux, right, cartoonist Renald Luzier, known as Luz, left, react during a march in Paris on Sunday, January 11. #

Demonstrators march in Paris on Sunday, January 11. Thousands of people and world leaders converged on Paris in a rally of defiance and sorrow on Sunday to honor the 17 victims of three days of bloodshed that left France on alert for more violence. #

People watch from their roof-top apartment as some thousands of people gather at Republique square in Paris on Sunday, January 11. Thousands of people began filling France’s iconic Republique plaza, and world leaders converged on Paris in a rally of defiance and sorrow on Sunday to honor the 17 victims of three days of bloodshed that left France on alert for more violence. #

Hundreds of thousands of French citizens take part in a solidarity march (Marche Republicaine) in the streets of Paris on January 11. French citizens were joined by dozens of foreign leaders, among them Arab and Muslim representatives, in a march on Sunday in an unprecedented tribute to this week's victims following the shootings by gunmen at the offices of the satirical weekly newspaper Charlie Hebdo, the killing of a police woman in Montrouge, and the hostage taking at a kosher supermarket at the Porte de Vincennes. #