Israeli Prime Minister Benjamin Netanyahu, far left, was among the dozens of world leaders who gathered for a unity march in Paris, Jan. 11, 2015. (Dan Kitwood/Getty Images)

(JTA) — Hundreds of thousands of people marched in a unity rally in Paris in a show of support against terrorism and for the victims of three attacks in Paris over three days.

No official police estimates have been released on the number of marchers at Sunday’s rally, but media outlets put the crowd at more than 1 million.

Paris is home to 2.3 million people.

Dozens of world leaders attended the event, including Israeli Prime Minister Benjamin Netanyahu and Palestinian Authority President Mahmoud Abbas, who marched in the front row of the foreign dignitaries several people apart, with Hollande in the middle.

There were no speeches at the rally. Marchers carried signs in French reading “I am Charlie,” referring to the satirical magazine where 12 staff members and security forces were killed on Jan. 6. Other signs read in French “I am Jewish,” representing the four men killed during an attack Friday on a kosher supermarket in a Paris suburb.