South Sudan town of Bor seized by rebels

The army in South Sudan says rebel forces allied to the former vice-president Riek Machar have seized control of the key town of Bor.

The unrest, which began in the capital Juba, has already killed 500 people and sparked fears of a civil war.

President Salva Kiir has accused Mr Machar of staging a coup - a claim he denies.

Thousands of people are seeking refuge from the fighting in UN compounds.

The BBC's Africa security correspondent, Moses Rono is following the story in neighbouring Kenya.