Breaking News-RTRS-UPDATE 2-Chinese buyers renege on some US soybeans

SINGAPORE, Feb 25 (Reuters) - Chinese importers have cancelled at least 3 cargoes totalling 180,000 tonnes of U.S. soybeans as the world's biggest buyer turns to cheaper cargoes from South America and domestic soymeal prices decline. Traders said there could be more soy deals in trouble, including some cargoes already afloat after China made strong purchases of the oilseed in the last few months.