China says it successfully fired an intercontinental ballistic missile into the Pacific Ocean on Wednesday, a rare public test that analysts said was meant to send a message to the United States and its allies amid heightened regional tensions.

China said Wednesday that it had successfully test-fired an intercontinental ballistic missile into the Pacific Ocean, in a rare public test that may raise international concerns as the country builds up its nuclear arsenal at a time of tensions with the United States.

Australia and New Zealand to brief Pacific partners of developments on the sidelines of the UN General Assembly.