President Barack Obama is about to make a statement after US-led air strikes hit Islamic State targets in Syria.
Update: This event has now finished.
US President Barack Obama has said he hopes the UK "remains strong, robust and united" ahead of the Scottish referendum.
The White House wrote on its official Twitter feed:
The UK is an extraordinary partner for America and a force for good in an unstable world. I hope it remains strong, robust and united. -bo
US President Barack Obama has met Ebola survivor Dr Kent Brantly and his wife Amber at the White House.
Dr. Brantly, an American citizen, contracted the deadly virus while in Liberia doing missionary aid work.
US President Barack Obama has praised those competing in the Invictus Games in a special video message.
The President said he knew it would be "fiercely competitive few days" as teams from around the world prepared for the Paralympics-style championships.
"The truth is that everyone of you in these Games, every service member and veteran, has already earned our highest admiration and our deepest gratitude," Obama said.
"When your countries asked you to serve, to risk everything to protect our safety and our freedom, you and your families answered the call and just as you inspire us with your courage on the battlefield, your grit and resilience when you take the playing field, your incomparable souls inspire us today."
President Obama has told congressional leaders he has the authority he needs to take action to destroy Islamic State, the White House has said.
Mr Obama will lay out his "game plan" on Wednesday aimed at dealing with and ultimately defeating the terrorist group, which is active in Iraq and Syria.
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US President Barack Obama has spoken to Iraq's prime minister by phone to congratulate him and the Iraqi people on the approval of a new government.
Obama and Haider al-Abadi agreed during the call that it was important for the new government to "quickly take concrete steps to address the aspirations and legitimate grievances of the Iraqi people," the White House said in a statement.
"Both leaders expressed their support for a strong, strategic partnership between the United States and Iraq, and the President underscored his commitment to coordinating closely with Prime Minister Abadi and his government and we advance our strategy to combat Isil," it added.
Barack Obama will outline a strategy this week to tackle Islamic State, but warned he was not going to wage another war in Iraq.
The US leader will lay out his "game plan" on Wednesday aimed at dealing with and ultimately defeating the terrorist group.
"I'm preparing the country to make sure that we deal with a threat from Isil," Obama told NBC's Meet the Press, using an alternative name for the jihadist group.
"This is not the equivalent of the Iraq war. What this is is similar to the kinds of counterterrorism campaigns that we've been engaging in consistently over the last five, six, seven years," the president added.
Prime Minister David Cameron has tweeted this photo of his meeting with US President Barack Obama.
Prime Minister David Cameron and US President Barack Obama are holding a "short bilateral meeting" before the Nato session gets under way.