Crisis in Yemen as Aden separatists declare self-rule

Southern Transitional Council breaks with wartorn state's internationally recognised government

The Saudi Arabian-backed government in Yemen has warned of a catastrophe if the country's powerful separatist movement forges ahead with its declaration of self-rule over the key port city of Aden and other southern provinces.

The Southern Transitional Council's armed forces were deploying on Sunday in Aden, the interim seat of the internationally recognised government backed by the Saudi-led military coalition that had until now included the STC.