United States asking China to increase control of North Korea SEOUL, Dec. 18 (UPI) -- The United States is sending a message to China that it needs to increase pressure on an increasingly rogue North Korea leadership, an authority in Seoul said. The international community condemned North Korea last week after it put a satellite into orbit using a long-range rocket. A similar effort in April failed. Washington and Seoul are said to be pressing for a new resolution at the U.N. Security Council condemning the launch, though the Yonhap news agency in South Korea said it's unclear if China will support the measure. "The U.S. is also sending a message to China that it will have no choice but to beef up its military readiness against North Korea's threats unless a resolution is adopted at the U.N. Security Council," a diplomatic source in Seoul told Yonhap on the condition of anonymity. North Korea pointed to the launch as a sign of its growing regional influence.