Ankara has warned Israel it faces growing regional isolation, as the Turkish Prime Minister heads for a visit to Egypt. Recep Tayyip Erdogan is expected to cement closer ties with Cairo - with both countries having recently strained relations with Tel Aviv. On Friday night, a raging mob in the Egyptian capital stormed and sacked the Israeli embassy, forcing its staff to flee. Ankara expelled Israeli diplomats last week, over Tel Aviv's refusal to apologize for killing 9 Turks during last-year's raid on a Gaza-bound aid flotilla. The Turkish PM says the attack was a 'cause for war', but his country chose to refrain from aggression. Middle East analyst Jonathan Spyer says the implications of the Arab Spring make Israel's isolation unavoidable.

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