WASHINGTON (Reuters) - U.S. President Donald Trump on Wednesday said additional major sanctions would be imposed on North Korea after Pyongyang said it had tested a new intercontinental ballistic missile and that its nuclear weapons could reach the U.S. mainland.  Just spoke to President Xi Jinping of China concerning the provocative actions of North Korea. Additional major sanctions will be imposed on North Korea today. This situation will be handled!  Trump wrote in a post on Twitter. He gave no other details about the sanctions. 