train on a test run, in a tunnel near the landmark Petronas Towers, one of the world’s tallest twin skyscrapers . “One [train] was travelling at 20 kilometres per hour and another at around 40 kilometres per hour when the collision happened. This caused a significant jolt that threw some passengers out of their seats,” he said . Federal Territory Minister Annuar Musa tweeted on Tuesday that three passengers were in a critical condition and had been placed on ventilators. More than 40 passengers suffered serious injuries and another 160 had minor injuries, he said. Prime Minister Muhyiddin Yassin promised a full investigation. The empty train on the test run