Osama bin Laden, the most wanted man in the world and mastermind behind the 9/11 attacks, was confirmed dead. The Al-Qaida leader's body is currently in the possession of the U.S. Bin Laden was hiding in Pakistan when he was killed in a ground operation.

According to the Associated Press, two senior counterterrorism officials confirmed that bin Laden was killed in Pakistan last week. It was a joint effort by American and Pakistani forces using U.S. intelligence. President Barack Obama addressed the nation Sunday night.

"Justice has been done," the president said. "The death of bin Laden marks the most significant achievement to date in our nation's struggle to defeat al-Qaida."

"We must and we will remain vigilant at home and abroad," he continued, while emphasizing that "the United States is not and never will be at war with Islam."

People gathered outside the White House singing "The Star-Spangled Banner" and "We Are The Champions".

Osama bin Laden's death comes just months before the 10th anniversary of the September 11th attacks on U.S. soil.