Seems to be a rather confused sequence of events occurring in Harare - firstly, the head of the Zimbabwean army threatened to launch a coup, and now there are reports of tanks heading towards the capital, though the Beeb suggest they are not directed at Mugabe.
http://www.bbc.com/news/world-africa-41984813
http://www.bbc.com/news/world-africa-41984813
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