BEIJING (Reuters) - Japan talking only about sanctions on North Korea rather than dialogue will be seen as going against United Nations resolutions, Chinese Foreign Minister Wang Yi told his Japanese counterpart. Tensions have continued to rise since North Korea carried out its sixth nuclear test on Sept. 3, prompting a new round of U.N. sanctions. Wang told Japan Foreign Minister Taro Kono on the sidelines of a United Nations meeting in New York that the situation on the Korean peninsula was getting increasingly serious and all sides needed to remain calm. Resuming peace talks was just as much a part of the U.N. resolutions as enforcing sanctions, Wang said, according to a statement issued by China s Foreign Ministry late on Friday.  If the Japanese side only talks about sanctions and does not bring up talks, or even goes against talks, it will be seen as contravening Security Council resolutions,  the ministry cited Wang as saying. China hoped that Japan talked and acted cautiously and played a constructive role on the nuclear issue, he said. Beijing has repeatedly expressed concern about the rise of tensions over North Korea and, while it too has signed up for the increasingly tough U.N. sanctions, it has also urged a return to talks and for all parties to exercise restraint. On Friday, Russia urged  hot heads  to calm down as the United States admitted it felt  challenged  by North Korea s warning that it could test a hydrogen bomb over the Pacific. Trump called North Korean leader Kim Jong Un a  madman  on Friday, a day after Kim dubbed him a  mentally deranged U.S. dotard  who would face the  highest level of hard-line countermeasure in history  in retaliation for Trump saying the U.S. would  totally destroy  North Korea if it threatened the United States or its allies. 