GLOBAL MARKETS-Asian shares edge down as U.S. yields climb, N. Korea suspends talks

SHANGHAI/TOKYO, May 16 (Reuters) - Asian stock markets dipped on Wednesday after Pyongyang abruptly called off talks with Seoul, throwing a U.S.-North Korean summit into doubt, while surging bond yields revived worries about faster U.S. interest rate hikes that could curb global demand. MSCI's broadest index of Asia-Pacific shares outside Japan was down 0.1 percent as Pyongyang's move appeared to mark a break in months of warming ties between North and South Korea and with Washington. European shares looked set to open flat to marginally higher on Wednesday and U.S. S&P futures were little changed.