Sarah Palin endorses Donald Trump

Donald Trump, the Republican front-runner in the race to be US President, has won the backing of the prominent conservative, Sarah Palin.

The Colombian government and the FARC rebel group have asked the United Nations to oversee the end to their decades old conflict.

Thousands of angry students have demonstrated on university campuses in major Indian cities to mark the death of Rohith Vemula - a PhD student in Hyderabad who they say was driven to suicide by caste discrimination.