Barack Obama, the US president, has called on Americans to unite regardless of their political colours as he paid tribute to the victims of a deadly shooting at a political event in the state of Arizona.

In his eulogy at a crowded indoor sports arena on Wednesday, Obama called for a more civil public discourse and warned that Americans should not turn on each other as they seek to understand what triggered the attack outside a supermarket in the city of Tucson. READ FULL STORY HERE