U.S. President Donald Trump said "all options are on the table" Tuesday after North Korea launched ballistic missiles over Japan.
Trump said in a written statement that "threatening and destabilizing actions" only increase North Korea's isolation in the region and around the world.
The president says North Korea's actions show "contempt for its neighbors" and that "all options are on the table" in terms of a U.S. response.
In a first, North Korea on Tuesday fired a midrange ballistic missile designed to carry a nuclear payload that flew over U.S. ally Japan and splashed into the northern Pacific Ocean.
Japanese officials said the missile flew over the northern Japanese island of Hokkaido and landed in the Pacific Ocean and that the Japanese military did not attempt to shoot down the missile. There was no damage to ships or anything else reported. Japan's NHK TV said the missile separated into three parts.
The Japanese government's J-Alert warning system advised people in the area to take precautions, warning them to stay indoors and prepare in case of a possible missile strike.
The launch comes days after the North fired what was assessed as three short-range ballistic missiles into the sea and a month after its second flight test of an intercontinental ballistic missile, which analysts say could reach deep into the U.S. mainland when perfected.