Cameroon’s longtime leader, Paul Biya, has been sworn in for a new seven-year term following his victory in last month’s presidential election, which his opposition rival has described as “a constitutional coup”.

Addressing Parliament on Thursday, the world’s oldest president promised to stay faithful to the confidence of the Cameroonian people and pledged to work for a “united, stable and prosperous” country.

The Nigerian government has dismissed claims made by US President Donald Trump about the persecution of Christians in the West African nation, insisting that religious freedom is fully protected under the country’s constitution.