‘‘China has limited influence with North Korea,’’ Zhang Liangui, a researcher with the ruling Communist Party’s main research and training institute, said in Beijing. ‘‘Beijing disapproves of any nuclear test or new missile launch, but there’s not a lot it can do.’’
Peter James Spielmann reported from the United Nations. Associated Press writers Hyung-jin Kim in Seoul and Christopher Bodeen in Beijing contributed to this report.
Follow AP’s Korea bureau chief at www.twitter.com/newsjean.