North Korea fired an unidentified projectile eastward on Sunday, according to reports.

Japan's coast guard told Reuters that the country possibly fired at least one ballistic missile, which would be its first test since late-January.

North Korean leader Kim Jong Un attends a ruling party congress in Pyongyang, North Korea, on Thursday.

North Korean leader Kim Jong Un attends a ruling party congress in Pyongyang, North Korea, on Thursday. (AP/Korean Central News Agency/Korea News Service)

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