Most illegally poached African elephant ivory can be traced back to just two areas of Africa, research shows.

US news anchor Brian Williams will not return to NBC Nightly News but will join cable news network MSNBC in an undisclosed role.

Leaders from eurozone nations are to hold an emergency summit on Monday after the latest attempts to resolve the Greek debt crisis failed.

Thailand confirms its first case of Middle East Respiratory Syndrome (Mers), the deadly virus that has killed 24 people in South Korea.

A group of eight Brazilian senators on a visit to Venezuela to meet a jailed opposition leader say they had to flee after their bus was attacked.

Prayers are held in South Carolina and across the US after the killing of nine people at an African-American church in Charleston.

At least 27 people die after consuming toxic alcohol in India's western city of Mumbai, local police say.

An oil tanker that was hijacked by pirates last week off Singapore's coast has been released, the Malaysian Navy says.