PARIS -- World leaders joined some 1.5 million people at a unity rally in Paris on Sunday, following a wave of deadly attacks that left at least 20 people dead last week. They were among at least 3.7 million people who marched throughout France on Sunday.
Leaders, including French President François Hollande, British Prime Minister David Cameron and Israeli Prime Minister Benjamin Netanyahu, joined Sunday's rally, which is under tight security. As the march moved through Paris, demonstrators held up pens and signs commemorating those who died in the attacks.
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Additional reporting by The Associated Press
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