North Korea’s foreign minister claimed Monday that President Trump had declared war on his nation, which means Pyongyang has the right to shoot down US bombers even if they’re in international air space.

“The whole world should clearly remember it was the US who first declared war on our country,” Foreign Minister Ri Yong-ho told reporters at the UN.

“Since the United States declared war on our country, we will have every right to make countermeasures, including the right to shoot down United States strategic bombers even when they are not inside the airspace border of our country,” Ri continued.

His statement came in response to Trump’s tweet over the weekend that North Korea’s regime and leader Kim Jong-un “won’t be around much longer.”

“Last weekend Trump claimed that our leadership wouldn’t be around much longer and declared a war on our country,” Ri said. “Given the fact that this comes from someone who is currently holding the seat of [the] United States presidency, this is clearly a declaration of war.”

He ended his brief remarks by saying: “The question of who won’t be around much longer will be answered then.”

White House Press Secretary Sarah Huckabee Sanders called North Korea’s claim nutty.

“We’ve not declared war on North Korea and frankly the suggestion of that is absurd,” she said during a West Wing news briefing.

​Sanders said it’s never “appropriate to shoot down another country’s aircraft when it’s over international waters​.”

“Our goal is still the same,” she added. “We continue to seek the peaceful denuclearization of the peninsula. That’s our focus — doing that through both the most maximum economic and diplomatic pressures as possible at this point.”

Another senior White House official said the US was not seeking regime change in the North.

The ongoing war of words between the two nations escalated on Saturday, a day on which the US military flew bombers in international airspace over waters east of North Korea.

Speaking at the UN on Saturday, Ri said that Trump had made a missile attack on the US mainland inevitable by insulting the dignity of North Korea.

“None other than Trump himself is on a suicide mission,” Ri said. “In case innocent lives of the US are harmed because of this suicide attack, Trump will be held totally responsible.”

In his own speech at the UN last week, Trump threatened to “totally destroy” North Korea and its 25 million people — and called ruler Kim “Rocket Man.”

With Post wires