Military says it has seized power in oil-rich Gabon, where the ailing leader's family has ruled for 50 years.
Soldiers in the Central African country of Gabon say they launched a coup "to restore democracy".
They took control of the national radio station in the early hours of Monday to read a short statement announcing a "National Restoration Council".
Tanks and armed vehicles can be seen on the streets of the capital Libreville.
President Ali Bongo took over power in 2009. He reportedly suffered a stroke in October and received treatment in Morocco.
Mr Bongo sought to put an end to the rumours about his health with a New Year message in which he said he was feeling fine.
Soldiers said they had been disappointed by the message, calling it "a pitiful sight" and a "relentless attempt to cling onto power."
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