Facebook is teaming up with telecoms companies to build a 37,000km (23,000-mile) undersea cable to supply faster internet to 16 countries in Africa.

Its length – almost equal to the circumference of the Earth – will make it one of the longest, it said.

It is part of a long-running bid by Facebook to take its social media platform to Africa’s young population.

Ready for use by 2024, it will deliver three times the capacity of all current undersea cables serving Africa.

“When completed, this new route will deliver much-needed internet capacity, redundancy, and reliability across Africa, supplement a rapidly increasing demand for capacity in the Middle East, and support further growth of 4G, 5G, and broadband access for hundreds of millions of people,” said