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There's confusion in Burkina Faso's capital, Ouagadougou, after a night of heavy clashes around the presidential palace and unconfirmed reports of a coup.

As tensions rise between Washington and Moscow, US citizens have been told not to go to Russia. American diplomats' families have also been ordered to leave Ukraine.

And after the eruption and tsunami that hit Tonga, the United Nations Coordination Specialist in the country calls for help in the clean-up.