Transcript for Trump warns North Korea 'all options are on the table'

Just before the president left for the storm zone in Texas, he responded to North Korea's latest missile launch, a rocket that flew over Japan. It triggered air rate sirens and text mail alerts. President trump is warning all options a on the table. Here's ABC's chief global affairs correspondent, Martha Raddatz. Reporter: President trump is confronting one on the world stage. What are you going to do about North Korea? We'll see, we'll see. Reporter: Kim Jong-un launching an intermediate range missile, soaring 1600 miles, crossing above the Japanese island of hokkaido, before crashing into the sea. The first time Kim Jong-un has made such a provocative move over Japanese territory. In Japan, high alert sirens sounding. People receiving text messages telling them to seek shelter. No country should have missiles flying over them like those 130 million people in Japan. So I think something serious has to happen. Reporter: In a statement president trump saying only "All optiwns are on the table." Martha Raddatz joins us from Washington, and Martha, the president recently threatened to respond to new provocations from Kim Jong-un with fire and fury. Just last week, he said he believed the north Korean leader was starting to respect us, but it doesn't appear that way anymore. Reporter: It sure doesn't, Tom. That statement about respect was clearly premature. You see Kim right there watching the launch. President trump has spoken with Japan's prime minister and both agreed they need to increase pressure on North Korea, but it is unclear what kind of pressure, and impossible to predict what Kim will do, Tom. Martha Raddatz for us tonight, thank you.

This transcript has been automatically generated and may not be 100% accurate.