TOKYO (Reuters) - U.S. stock futures extended falls in Asian trading on Wednesday, tumbling more than 1 percent as plunging Chinese shares rattled investors.
S&P 500 E-mini futures were last down 1 percent on the day at 2,053.75, after dropping as low as 2,052.25.
China's share markets extended a savage correction that has clipped 30 percent off Chinese shares since mid-June, despite market support steps from Beijing.
(Reporting by Tokyo markets team; Editing by Shri Navaratnam)
