Responding Monday to new U.N. sanctions, North Korea threatened a nuclear attack on the United States.

Speaking at the ASEAN summit in Manila, North Korea’s foreign minister spoke of “intercontinental attack capabilities” that meant his nation could teach the U.S. a “severe lesson with its nuclear strategic force.” Doubling down, North Korea’s state news agency suggested that “There is no bigger mistake than the United States believing that its land is safe across the ocean.”