Cameroonian President Paul Biya marks 40 years in power by staying out of view

President Paul Biya of Cameroon who has been in power for 40 years, seen with former prime minister Tony Blair (PA)

President Paul Biya of Cameroon marked 40 years in power by staying out of the spotlight as questions swirled about the 89-year-old, who is the only leader most of the country’s people have ever known.

Biya has not appeared in public since French President Emmanuel Macron visited the Central African nation in July.