Osama bin Laden has been killed in Pakistan. US President Barack Obama announced Sunday to Osama bin Laden ‘s death.

The targeted CIA operation that killed bin Laden comes nearly 10 years after the September 11 attacks on the U.S., in which thousands of men, women and children lost their lives.

The United States is warning its citizens around the world to be on the alert for potential anti-American violence in response to the announcement of Osama bin Laden’s death. The State Department issued a statement early Monday saying U.S. citizens in sensitive locations “are strongly urged to limit their travel outside of their homes and hotels and avoid mass gatherings and demonstrations.” The statement said U.S. embassies would maintain operations insofar as possible but may be forced to limit some services.

Thousands of people poured into the streets in New York early Monday in a spontaneous celebration at the reported death of Osama bin Laden, mastermind of attacks that killed almost 3,000 people in the city on September 11, 2001.