An old train station in Mombasa.
An old train station in Mombasa. - 

There's just been a groundbreaking for a $4 billion railway from the port of Mombasa in Kenya to the capital Nairobi. It's the first phase of a massive rail project that could directly affect the economies of five East and Central African countries. The BBC's Emmanuel Igunza reports on the story from Nairobi.

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