North Korea was previously designated a state sponsor of terrorism because of its alleged involvement in the 1983 Rangoon bombing and the 1987 bombing of a South Korean airliner. On 11 October 2008, the United States removed North Korea from its list of states that sponsor terrorism after Pyongyang agreed to cooperate on issues related to its nuclear program. North Korea was re-designated a state sponsor of terrorism by the U.S. under the Trump administration on 20 November 2017. The kidnapping of at least 13 Japanese citizens by North Korean agents in the 1970s and the 1980s has had a detrimental effect on North Korea's relationship with Japan.