Japan’s public broadcaster on Tuesday issued a false alarm about a North Korean ballistic missile launch, just days after the same blunder terrorized residents of Hawaii for nearly 40 minutes.

The broadcaster, NHK, corrected the mistake in minutes and issued an on-air apology.

“The news alert sent earlier about NK missile was a mistake. No government J alert was issued,” it said.

Authorities were trying to figure out what triggered the mistake.

“We’re still checking,” an NHK spokesman said.

The broadcaster on Tuesday evening issued an alert urging people to take shelter.

“NHK news alert. North Korea likely to have launched missile. The government J alert: evacuate inside the building or underground,” it said.

Five minutes later, it corrected the error.

“We’re very sorry,” NHK said.

On Saturday, an emergency alert was sent out on television, radio and cellphones to residents of Hawaii warning them of an imminent “ballistic missile threat” — a gaffe that sowed chaos and terror on the island paradise.

“BALLISTIC MISSILE THREAT INBOUND TO HAWAII. SEEK IMMEDIATE SHELTER. THIS IS NOT A DRILL,” the alert read.

It took 38 minutes for emergency officials in Hawaii to send out a message canceling the alert.

The error was blamed on an employee, who has since been reassigned, pushing the wrong button.

North Korea’s objective to develop an intercontinental ballistic missile capable of carrying a nuclear warhead that can strike the US mainland has dramatically increased tensions in the region.

​President Kim Jong Un’s regime has test-fired a number of missiles over Japan in recent months and has threatened to ​bomb Guam, a US territory in the Pacific.

​Kim and President Trump have engaged in a war of words over Pyongyang’s nuclear ambitions, with Trump mocking Kim as “Little Rocket Man​” and saying he has a bigger and more powerful “nuclear button.”

​The United Nations and the US have also imposed a series of punishing financial sanctions on the country to force it to curb its weapons program.

But after a two-year lapse, Kim’s regime entered into discussions last week with South Korea.

The talks were aimed at trying to tamp down tensions on the peninsula and negotiating ​ North Korea’s desire to send a delegation to the Olympic Winter Games to be held next month in South Korea.

With Post wires