North Korea Launches  Submarine in Latest Test

Ballistic Missile from

The South Korean Military Detected

The submarine-launched ballistic missile test off the coast of the North Korean city of Sinpo at 2:07 p.m. local time, according to the Yonhap News Agency. 

The Missile

Flew about 372 miles (600 kilometers) and reached a maximum altitude of 37 miles (60 km), 

The Missile Did

Not reach the boundary of space (about 62 miles or 100 km) through which other ballistic missiles fly.

It Apparently

Fell back to Earth in the waters outside of Japan's exclusive economic zone, according the Associated Press.

The Launch Marks North Korea's

15th missile test this year and comes just three days after its most recent test, a land-based flight from Sunan, near the North Korean capital of Pyongyang. 

North Korea Has Stepped Up

Its missile testing activities in recent months, which included its first long-range ballistic missile test since 2017.