North Korean leader Kim Jong Il said Pyongyang didn't plan to carry out any more nuclear tests and expressed regret about the country's first-ever atomic detonation last week, a South Korean news agency reported Friday. North Korea, however, kept up its bellicose rhetoric as more than 100,000 people gathered Friday in Pyongyang's central Kim Il Sung square to "hail the success of the historic nuclear test," according to the North's official media. Kim told Chinese State Councilor Tang Jiaxuan that "we have no plans for additional nuclear tests," Yonhap news agency reported, citing an unnamed diplomatic source in Beijing. Kim also told the Chinese that "he is sorry about the nuclear test," the mass-circulation Chosun Ilbo daily reported, citing a diplomatic source in China. The North Korean leader also raised the possibility the country would return to arms talks.