Kim Jong-un threatened to destroy South Korea and called it the "main enemy" during a speech in honor of the founding of the North Korean army.
An American F-16 fighter jet crashed off the coast of South Korea on Wednesday, with the pilot safely ejecting.
North Korea has confirmed that it has successfully tested a Hwasal-2 strategic cruise missile off its west coast to improve its strategic attack skills and test its rapid response capabilities.
In Seoul, an SUV crashed into a security post in front of the Russian Embassy, seriously injuring a policeman on duty. The cause of the accident is under investigation.
The submarine USS Missouri arrived in South Korea to strengthen defense ties amid potential missile tests by North Korea.