In Malaysia, four people have been killed and almost 50,000 forced out of their homes to relief camps as floods hit northern area. State media today said rising waters have hit three Malaysian states on the border with Thailand, which has also been seriously affected. An airport and a major highway have been closed, and train services and water supplies have also been disrupted by Malaysia's worst floods in five years. State news agency Bernama said that nearly 50,000 people have now been taken to relief centres to escape the floods in Perlis, Kedah and Kelantan states. Prime Minister Najib Razak urged flood victims and residents in the affected areas to be cautious.