North Korea has fired multiple unidentified projectiles less than a week after firing two new short-range ballistic missiles, the South Korean military's Joint Chiefs of Staff (JCS) says.

The latest launches early on Wednesday were from the Hodo peninsula on North Korea's east coast, the same area where last week's launches were conducted. 

North Korea has also warned of a possible end to its freeze on nuclear and long-range missile tests in place since 2017, which US President Donald Trump has repeatedly upheld as evidence of the success of his engagement with North Korean leader Kim Jong-un.