It has been two weeks since Gabon's president fell ill in Saudi Arabia and the Gabonese public still don't know what's wrong with him.

Ali Bongo was at an economic forum in the capital Riyadh when he was taken to hospital.

The 59-year-old's spokesman Ike Ngouoni said at the time that doctors there had diagnosed him with "severe fatigue" and ordered bed rest, reports AFP news agency.

But since then there has been silence.

Earlier today, an AFP journalist, who went to Riyadh's King Faisal Hospital where Mr Bongo is being treated, was told that all information on the president's health was subject to either a "royal order" or authorisation from the Gabonese embassy.

The news agency adds that the silence has fuelled all kinds of rumours on social media

Mr Bongo took over as president from his father, Omar, who died in office in 2009.