Construction workers take a nap in front of a wall of a construction site during their lunch break in Beijing, China, May 5, 2015. REUTERS/Kim Kyung-Hoon /File PhotoAug 15 (Reuters) - China suspended publication of its youth jobless data on Tuesday, saying it needed to review the methodology behind the closely watched benchmark, which has hit record highs in one of many warning signs for the world's second-largest economy. Fu Linghui, a spokesman for the National Bureau of Statistics (NBS), said the release of data would be suspended while authorities look to "optimise" collection methods. "The declining availability of macro data may further weaken global investors' confidence in China," said Ting Lu, chief China economist at Nomura, adding that youth unemployment was expected to have risen in July. The most recent NBS data on youth unemployment, published last month, showed the jobless rate jumping to a record high of 21.3% in June.

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Persons: Kim Kyung, Fu Linghui, Fu, Ting Lu, Tuesday's, Laurie Chen, Albee Zhang, Muralikumar Anantharaman, Sam Holmes, Gerry Doyle Organizations: REUTERS, National Bureau of Statistics, Nomura, China News Service, Thomson Locations: Beijing, China, Weibo