RPT-UPDATE 5-Chinese regulator vows share support after markets tumble 8.5 pct in a day
July 27, 2015 at 20:07 PM EDT
SHANGHAI, July 27 (Reuters) - China said on Monday it was prepared to buy shares to stabilise the stock market and avert "systemic risks", after major indices plunged more than 8 percent in the biggest one-day fall since 2007.
