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A forklift carries a vehicle as it is moved from floodwaters in Bangkok. Thailand's worst floods in half a century reached the edge of downtown Bangkok, threatening some underground rail stations and forcing the closure of a major shopping centre. Image Credit: AFP

Bangkok: Floodwaters are moving closer to the heart of Thailand's capital, with officials warning that no major barriers are standing in the way to prevent the water from reaching downtown Bangkok.

City spokesman Jate Sopitpongstorn said on Saturday that workers have finished building a massive flood wall in hopes of diverting some of the mass of water still piled up in northern Bangkok.

However, he said the city would have to rely on its existing drainage system to fight water that was already less than 10 kilometres from the central business district.

The flooding, which started in northern Thailand in late July and has killed almost 450 people nationwide, has been spreading across Bangkok's north and west for more than a week.
 
The government has asked residents in eight of the city's 50 districts to evacuate.