The White House insisted Thursday that diplomatic options are still available for dealing with North Korea, even after President Trump said Wednesday that " talking is not the answer."

"Absolutely," White House press secretary Sarah Sanders said when asked if negotiating is still a possibility.

The White House followed Trump's tweet with a statement saying that "all options are on the table," and Sanders reinforced that Thursday.

"All includes all, so I think that would certainly include diplomatic, economic and military options," she said.

Shortly after Trump's tweet, Defense Secretary Jim Mattis insisted that the U.S. is " never out of diplomatic solutions."

Tensions between the U.S. and North Korea have been rising in light of ongoing missile tests. Early Tuesday morning, North Korea fired a missile over Japan, landed it in the Pacific, and said it was the first step toward containing Guam, a U.S. territory.