Colombia’s Ecopetrol polluted hundreds of sites, including water sources and wetlands, the BBC finds.

Experts release this year's World Happiness Report - which also ranks the world's happiest countries.

The company is still valued at more than 100 times its earnings - but it faces problems that experts say go beyond questions around its CEO

Israel says troops have moved in up to the Netzarim Corridor, after two days of air strikes killed hundreds in Gaza.

Israel says troops have moved in up to the Netzarim Corridor, after two days of air strikes killed hundreds in Gaza.

Experts praised a move towards transparency, but there are no major revelations in the documents - and some still have yet to be released.

Could this be a chance for the world’s fifth-largest economy to shed protectionism and open up further?

Some relatives of accused and deported gang members say their sons have been wrongly swept up in a Trump administration crackdown.

Some relatives of accused and deported gang members say their sons have been wrongly swept up in a Trump administration crackdown.

Some relatives of accused and deported gang members say their sons have been wrongly swept up in a Trump administration crackdown.

The Trump administration has defunded a programme documenting the abduction of children from Ukraine.

The US president says peace efforts are "very much on track" after an hour-long conversation.

The move from Orban's conservative government is the latest in a crackdown on the LGBT community.

The move from Orban's conservative government is the latest in a crackdown on the LGBT community.

Turkey's arrested opposition leader is seen as President Erdogan's most formidable rival.

Malaysia's cabinet approves a fresh search for the missing plane by exploration firm Ocean Infinity.

The Russian leader was able to set his own conditions for peace in a two-hour phone call with Donald Trump.

Malaysia's cabinet approves a fresh search for the missing plane by exploration firm Ocean Infinity.

Police have described Emanuele Gregorini as "the head of the Italian mafia Latin America".

Police have described Emanuele Gregorini as "the head of the Italian mafia Latin America".