European countries with seats on the UN Security Council have requested that the panel meets to discuss North Korea's latest missile launches.
Diplomats said that Ireland, France, Estonia, Norway, and the UK have asked for a closed-door meeting of the council on Tuesday.
Separately, a UN sanctions committee focused on nuclear-armed North Korea has asked its experts to investigate Pyongyang's launch of missiles last Thursday.
The committee is composed of the same 15 countries that sit on the Security Council.
North Korea launched two weapons from its east coast on Thursday, which the Japanese Prime Minister, Yoshihide Suga, called ballistic missiles.
It was North Korea's first substantive provocation since Joe Biden took power as US president in January.
The sanctions committee met after an urgent request made by the United States.
Following the launch, President Biden labelled the test a violation of UN resolutions and advised the isolated state against ramping up military testing, warning that "there will be responses if they choose to escalate".
North Korea threatened a further military build-up today in response to Mr Biden's condemnation of this week's missile launches.
Ri Pyong Chol, a leading official in North Korea's missile programme who supervised the test, said the president's comments had revealed his "deep-seated hostility" to the regime.
The nuclear-armed North has a long history of using weapons tests to ramp up tensions, in a carefully calibrated process to try to forward its objectives.
