Yemen: Saudi-led coalition warns of more air strikes over Aden

Yemeni separatists have taken control of the port city after days of fighting with troops loyal to the government. The UN says up to forty people have been killed and more than two-hundred-and-fifty wounded so far. Also: Pro-democracy protesters and police clash in Hong Kong, as both sides change tactics; and the herd of dairy cows living on a robot island.
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