North Korea launches missiles after U.S. submarinearrives in South Korea

North Korea on Monday fired two ballistic missiles on Monday following the arrival of an American nuclear submarine at naval base in South Korea.

Both missiles entered the sea on the eastern side of the country, Reuters reported. The U.S. military has insisted that neither missile posed a threat to its operations.

The launches followed the arrival of the submarine on the island of Jeju to load military supplies. The vessel is on an unspecified mission.

Monday's incident is the latest in a series of missile and lesser rocket launches from North Korea as South Korea strengthens its relations with the United States and works to bolster military preparedness.

North and South Korea remain technically at war, as both parties never signed a conclusive peace treaty after the Korean War, which saw both China and the U.S. intervene in the struggle to control the whole peninsula.

Ben Whedon is an editor and reporter for Just the News. Follow him on Twitter.