[Updated, 12:35 a.m. ET] The U.S. State Department warned Americans living abroad of "enhanced potential for anti-American violence" following the death of terrorist leader Osama bin Laden. The announcement was made in a worldwide travel alert issued early Monday.
[Updated, 12:24 a.m. ET] A team of U.S. Navy SEALs carried out the operation in Pakistan that ended in the death of al Qaeda leader Osama bin Laden, CNN's Chris Lawrence reported. The operation lasted about 40 minutes, and the team had practiced the raid a few times.
Earlier, CNN's Nick Paton Walsh, citing a senior Pakistani intelligence official, reported that members of Pakistan's intelligence service - the ISI - were on site in Abbotabad, Pakistan, during the operation that killed bin Laden. The official said he did not know who fired the shot that actually killed Bin Laden.
[Updated, 12:11 a.m. ET] Members of Pakistan's intelligence service - the ISI - were on site in Abbotabad, Pakistan, during the operation that killed Osama bin Laden, CNN's Nick Paton Walsh reports, citing a senior Pakistani intelligence official. The official said he did not know who fired the shot that actually killed Bin Laden.
[Updated, 12:06 a.m. ET] The crowd celebrating bin Laden's death outside the White House has grown significantly. Lots of cheering and waving of the U.S. flag.
[Updated, 11:59 p.m. ET] - More detail on where Osama bin Laden was killed: Forces killed him at a compound in Abbottabad, Pakistan, after a firefight, U.S. President Barack Obama said.
Cooperation with Pakistan helped lead U.S. forces to Osama bin Laden and the compound where he was hiding, President Barack Obama said.
Obama said he ordered the attack after he decided last week that the United States had actionable intelligence that bin Laden was in the compound.
[Updated, 11:56 p.m. ET] U.S. diplomatic facilities around the world were placed on high alert following the announcement of Osama bin Laden's death, a senior U.S. official said. The U.S. State Department should be sending out a new "worldwide caution" for Americans shortly.
[Updated, 11:44 p.m. ET] Bin Laden was killed in a military operation in Pakistan that U.S. President Barack Obama ordered today, Obama said.
Obama said he was told last August that the United States had developed a possible lead on bin Laden - intelligence on bin Laden hiding in a compound in Pakistan. Obama said he determined last week that the United States had actionable intelligence.
"Today at my direction, the United States directed a targeted operation against that compound," Obama said.
Bin Laden was killed after a firefight, and forces took custody of his body, the president said. No Americans were harmed, Obama said.
[Updated, 11:36 p.m. ET] U.S. President Barack Obama announced Sunday night that al Qaeda leader Osama bin Laden is dead.
"Tonight I can report to the American people and to the world that the United States has conducted an operation that has killed Osama bin Laden, the leader of al Qaeda," Obama said.
[Updated, 11:33 p.m. ET] Osama bin Laden was killed by a "U.S. military asset," according to a senior U.S. official.
Earlier, a senior U.S. official says bin Laden was killed by U.S. forces in a mansion outside the Pakistani capital of Islamabad along with other family members.
U.S. President Barack Obama is expected to address the nation shortly.
[Updated, 11:20 p.m. ET] A crowd that has gathered outside the White House is singing the national anthem, within an hour after reports that al Qaeda leader Osama bin Laden has been killed.
The group also chanted, "USA! USA!" and "Hey, hey, goodbye!" in reference to bin Laden.
A senior U.S. official says bin Laden was killed by U.S. forces in a mansion outside the Pakistani capital of Islamabad along with other family members.
U.S. President Barack Obama is expected to address the nation shortly.
[Updated, 11:15 p.m. ET] Al Qaeda leader Osama bin Laden was killed by U.S. forces in a mansion outside the Pakistani capital of Islamabad along with other family members, a senior U.S. official tells CNN.
Congressional and administration sources say U.S. officials have the body of bin Laden. Further details around his death were not immediately available.
Bin Laden was the leader of al Qaeda, the terrorist network behind the September 11, 2001, attacks on the United States.
U.S. President Barack Obama is expected to address the nation shortly.
[Updated, 10:55 p.m. ET] A woman whose mother was killed on American Airlines Flight 11 on September 11 expressed "relief" over reports that Osama bin Laden is dead.
In an e-mail to CNN, Carrie Lemack said: "Cannot express how this feels to my family, but relief is one word. We hope we can now focus on all that that madman took, namely nearly 3,000 + innocent victims, and not on him."
[Updated, 10:55 p.m. ET] Osama bin Laden is dead, sources told CNN Sunday night.
Congressional and administration sources say U.S. officials have the body of bin Laden, who was reportedly killed in Afghanistan. The details about his death were not immediately available.
U.S. President Barack Obama is expected to address the nation shortly.
[Updated, 10:45 p.m. ET] Osama bin Laden is dead, CNN's John King reported Sunday night, citing sources.
[Initial post, 10:09 p.m. ET] U.S. President Barack Obama is expected to make a statement Sunday night, tentatively at 10:30 p.m., the White House said. The subject of his address was not known.
Obama is expected to address national security in his speech, a source said.
