Front-runner Donald Trump Stays Away From Debate

US Republican presidential hopefuls are holding their final television debate before the primaries -- but the front-runner, Donald Trump, has stayed away.

The Brazilian president has urged the whole of society to join the battle against the Zika virus, which has been linked to birth defects.

Senegal says it will become self-sufficient in energy and will possibly export gas to the rest of the world in the next few years.