According to South Korea, North Korea attempted another intermediate range missile launch but the launch was a failure. CNN reports this is the fifth test of the country’s “Musudan” missile in two months. All of those tests have failed:

North Korea fired a missile Wednesday morning from the city of Wonsan on its eastern coast, according to a spokesperson from the South Korean Joint Chiefs of Staff.

The launch occurred at 5:58 a.m. local time and is presumed to be a Musudan missile, the official said. The South Korean military presumes the launch has been a failure, but did not elaborate, according to the spokesperson.

The Musudan could, in theory, carry a nuclear warhead up to 1,800 miles, far enough to reach Guam. In practice all of the missile tests this year have exploded.

A Pentagon spokesman warned North Korea against another missile test hours before it took place. From Reuters:

In Washington, a Pentagon spokesman said the United States continued to coordinate with its allies in the region and was watching the situation “very, very closely.”

“We of course would have concerns if the North Koreans were to conduct another missile test… we certainly would urge North Korea to refrain from doing that sort of thing,” Peter Cook told reporters in Washington.

Japan was aware of the impending launch and was ready to shoot it down if the missile appeared to be crossing into their territory.