US President Donald Trump says North Korea showed "great disrespect" to its major ally China by "shooting off yet another ballistic missile".
Early on Monday morning, North Korea launched a short-range ballistic missile that flew for six minutes until it crashed into the Sea of Japan.
The test sparked an international chorus of condemnation, and on Monday night Mr Trump took to Twitter to portray the test as an affront to China.
"North Korea has shown great disrespect for their neighbour, China, by shooting off yet another ballistic missile … but China is trying hard!" Mr Trump wrote.
Mr Trump has in the past commended China for its efforts to rein in the North Korean nuclear weapons and missile testing programme.
China condemned the latest test, reiterating that UN Security Council resolutions had "clear rules" about North Korean missile activities and urging Pyongyang not to contravene them.