U.S. President Donald Trump said Saturday he believes North Korea will abide by its pledge to suspend missile tests while he prepares for a summit by May with the North’s leader, Kim Jong Un.

Trump noted in a tweet that North Korea has refrained from such tests since November and said Kim “has promised not to do so through our meetings.”

“I believe they will honor that commitment,” the president wrote.

On Friday, Chinese President Xi Jinping and Trump discussed the situation on the Korean Peninsula and bilateral relations via phone. Xi told Trump that he appreciates the U.S. president’s desire to resolve the Korean Peninsula issue politically, hoping that the United States and North Korea will start dialogue as soon as possible and strive for positive results.

Xi added that he hopes all parties concerned will show goodwill and avoid doing anything, which might affect or interfere with the improving situation on the peninsula, calling on them to maintain the positive momentum on the Korean Peninsula issue.

Trump continued the optimistic tone Saturday night when he led a rally for the Republican candidate in a special House race in western Pennsylvania. When he mentioned Kim’s name, the crowd booed but Trump responded: “No, it’s very positive ... no, after the meeting you may do that, but now we have to be very nice because let’s see what happens, let’s see what happens.”

Trump shocked many inside and outside his administration Thursday when he told South Korean officials who had just returned from talks in North Korea that he would be willing to accept Kim’s meeting invitation.

Trump had previously threatened North Korea with “fire and fury like the world has never seen.”(SD-Xinhua)