Riot police advanced on Hong Kong democracy protesters in the early hours of Monday, firing volleys of tear gas after launching a baton-charge in the worst unrest there since China took back control of the former British colony two decades ago.
Hundreds of Yemenis demonstrated in Sanaa on Sunday demanding that Houthi rebels who had seized control of the capital last week leave, a day after the Shi'ite Muslim fighters attacked the home of the intelligence chief.
Ukrainian President Petro Poroshenko has secured a temporary peace in the troubled east which he says gives him a chance to move Ukraine towards its dream of a place in Europe - but Russia's Vladimir Putin still holds cards that could thwart him.
Normally it takes years to prove a new vaccine is both safe and effective before it can be used in the field. But with hundreds of people dying a day in the worst ever outbreak of Ebola, there is no time to wait.
