Fears are growing that the Ebola outbreak in the Democratic Republic of Congo (DRC) is gathering momentum, as a treatment centre is set alight by an angry crowd.
Marco Rubio said there are "some good signs" that a deal to end the Iran war could be in sight - but added that he doesn't "want to be overly optimistic".
International concern has been growing following weeks of nationwide protests in Bolivia - with the country's president saying he will reshuffle his cabinet in response to the unrest.
The UK will provide up to £20m to help contain an Ebola outbreak suspected of killing more than 130 people in the Democratic Republic of the Congo and Uganda.