Shinzo Abe and Donald Trump
Shinzo Abe and Donald TrumpReuters

U.S. President Donald Trump and Japanese Prime Minister Shinzo Abe spoke on the phone about North Korea on Sunday.

The two condemned North Korea’s “continued destabilizing and provocative actions,” following that country’s most recent nuclear test, the White House said following the call, according to Reuters.

Trump also reaffirmed to Abe that Washington would defend itself and its allies “using the full range of diplomatic, conventional, and nuclear capabilities at our disposal,” the White House added.

“The two leaders condemned North Korea’s continued destabilizing and provocative actions, confirmed the two countries’ ironclad mutual defense commitments, and pledged to continue close cooperation,” the statement said.

On Saturday night, North Korea successfully tested a hydrogen bomb (H-bomb), causing a 6.3-magnitude earthquake in the country.

The test came after North Korean media claimed the country had developed an H-bomb which can be loaded into the country's new intercontinental ballistic missile (ICBM).

Sunday's conversation between Trump and Abe was their second one in as many days. The two also spoke hours before the North Korean test and discussed ways to "maximize pressure" on North Korea over its missile program.

Before Sunday’s conversation with Abe, Trump addressed the latest North Korean test and, when asked whether he would launch a military strike on North Korea, he replied, “We’ll see.”