(CNN)North Korea launched two ballistic missiles on Thursday, according to an intelligence assessment, a senior US official tells CNN.
It is not known yet whether the missiles were short, medium or long range, such as an intercontinental ballistic missile (ICBM). The US military and intelligence community is still analyzing data from the test launch to determine what kind of missile was fired and how far it went.North Korea conducts first weapons test of Biden's presidency The US tracks all North Korean weapons tests through radar and satellites, which are able to detect heat signatures of a missile launch almost immediately.Earlier in the day, the South Korean Joint Chiefs of Staff told reporters that North Korea had launched unidentified projectiles toward the sea between the Korean peninsula and Japan.”South Korean military has strengthened its surveillance and maintaining readiness in close cooperation with the US,” the Joint Chiefs of Staff said in a statement.Read MoreAccording to Japan’s Defense Ministry, the projectile is likely to have landed outside Japanese territory and its exclusive economic zone. Japan’s Coast Guard has warned ships to be on the lookout for falling debris. The second test in less than a weekLast weekend, North Korea carried out its first weapons test since US President Joe Biden took office, according to three US officials, launching two projectiles in a move that senior administration officials downplayed as falling “on the low end of the spectrum” of provocations.Officials and experts had anticipated that North Korean leader Kim Jong Un would attempt to send a message to the Biden administration about the country’s importance in the region.North Korea breaks silence to warn US against 'causing a stink'In that test, one US official told CNN that North Korea had launched short-range projectiles, possibly artillery or cruise missiles, not ballistic missiles — a key distinction underscored the Biden administration’s view that it was not a serious breach and will not prevent the US from pursuing diplomacy with Pyongyang.But in a statement to the Senate Armed Forces Committee on March 16, US Air Force General Glen VanHerck warned that the isolated regime could go further. Pyongyang has “indicated that it is no longer bound by the unilateral nuclear and ICBM testing moratorium announced in 2018, suggesting that Kim Jong Un may begin flight testing an improved ICBM design in the near future,” he said.This story is developing and will be updated.