Sen. Dianne Feinstein said Tuesday that President Trump’s “bombastic” threats to North Korea over its nuclear weapons program are not “helping” to defuse the situation.

Feinstein, D-Calif., in a statement, said the U.S. should engage in diplomatic negotiations with North Korea without any preconditions over its nuclear weapons program. Earlier Tuesday, Trump threatened to unleash “fire and fury” against North Korea if it continues to threaten the U.S. with its weapons program.