The Trump administration is considering all options to respond to North Korea’s ongoing missile and nuclear tests, United States Ambassador to the United Nations Nikki Haley said on Wednesday.

Haley made the comments at a press conference following a closed-door emergency meeting of the UN Security Council (UNSC) in the wake of the North’s latest test launch of four Scud-ER missiles on Monday morning.

Three landed within Japan’s exclusive economic zone (EEZ), with the missiles flying 1,000 kilometers before splashing down within Japan’s EEZ, some 250 km west of the Akita Prefecture.

“This is not something we can take lightly.