AT least 20 people were killed when a passenger train derailed and overturned between the Kenyan capital, Nairobi, and the port city of Mombasa early on Wednesday, police said. The accident occurred between Kyulu and Tsavo river next to Tsavo National Park, in southern Kenya. Police spokesperson Albert Waweru said some carriages fell off the tracks. Kenya Railways Corporation has tremendous financial problems and recently sacked dozens of workers in a restructuring programme ahead of privatisation.