On Sunday, Trump briefly left Walter Reed Medical Center to wave to supporters.

Americans Harvey Alter and Charles Rice and Britain's Michael Houghton win the Nobel Prize for medicine for their studies of the hepatitis C virus.

Thai army chiefs meet for the first time since changes in the military leadership.

For months, protesters have been urging the military to step away from politics, and Sudan's government and rebel groups have agreed to a peace deal aimed at ending years of conflict.