It came as a shock and surprise to the world and spontaneous celebrations broke out across America.
Osama was the former head of the Islamist militant group al-Qaeda, responsible for the September 11 attacks which killed almost 3000 people. He had managed to evade the Americans for a decade before he was finally hunted down.
The operation code-named Operation Neptune Spear, was ordered by the President himself.
"The United States has conducted an operation that killed Osama bin Laden, the leader of al Qaeda and a terrorist who's responsible for the murder of thousands of innocent men, women and children," he said.
Text: Shradha Mohanty
Image: This undated file photo shows former, late al-Qaeda leader Osama bin Laden at an undisclosed place inside Afghanistan.