By Ahmed Elimam and Maha El Dahan

DUBAI, Jan 4 (Reuters) - Yemen's Saudi-backed government on Sunday accused UAE-backed southern separatists of cutting off the port city of Aden and warned it would "take all necessary measures" after recapturing territory from them in the east on Saturday.

The separatists denied having restricted movement into Aden, but the government accusations indicate that hostility between the sides persists despite proposals for a dialogue that had raised hopes of a negotiated solution to the crisis.

The conflict between the government and the Southern Transitional Council since early last month has triggered a major feud between the Gulf powers and fractured the coalition fighting Houthi forces.

The Iran-backed Houthis seized the........

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