US President Barack Obama has called for "immediate additional steps to ensure hospitals and healthcare providers nationwide are prepared to follow the protocols should they encounter an Ebola patient"..
Earlier, the president was briefed on the second patient to be infected with Ebola in Dallas, Texas.
Hr also called for an investigation into how a female health worker was infected with the virus to move as quickly as possible.
President Barack Obama has responded to the murder of Alan Henning, vowing to continue to take action to "degrade and ultimately destroy" militant group Islamic State.
"Standing together with our UK friends and allies, we will work to bring the perpetrators of Alan's murder - as well as the murders of Jim Foley, Steven Sotloff and David Haines - to justice," he said.
"Standing together with a broad coalition of allies and partners, we will continue taking decisive action to degrade and ultimately destroy Isil."
President Barack Obama has said the US "strongly condemns the brutal murder" of British aid worker Alan Henning by Islamic State militants.
He said Mr Henning's death was a "great loss" for both his family and the British people.
ITV News Washington Correspondent John Ray has the latest developments:
White House 'strongly condemns the brutal murder of Alan Henning. He worked to help improve the lives of the Syrian people.....
.... his death is a great loss for them, for his family and the people of the United Kingdom. '
A video showing the US President saluting servicemen with a coffee cup in hand has prompted outrage on social media.Read the full story ›
President Barack Obama said the US "will not tolerate safe havens for terrorists" following targeted air strikes on Islamic State militants in Syria.
"Once again it must be clear to anyone who would plot against America and try to do Americans harm that we will not tolerate safe havens for terrorists who threaten our people," Obama said.
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.