President Donald Trump appeared to suggest the U.S. will resume testing nuclear weapons for the first time in three decades, saying "it will be announced," but offering no further details.

The president, while speaking to reporters aboard Air Force One, seemed to be conflating the testing of missiles that deliver a nuclear warhead and the testing of nuclear weapons.

Trump said that other countries “seem to all be nuclear testing” but when it comes to the U.S., “We have more nuclear weapons than anybody. We don’t do testing.”

The U.S. tests its missiles, as does China and Russia. But the U.S. has not done an explosion test on its nuclear warheads since 1992 and no country outside of North Korea has done those tests on their weapons since the 1990s.

“I see them testing and I say, well, if they’re going to test, I guess we have to test,” Trump said.

Trump was asked where the tests would occur and he said, “It’ll be announced. We have test sites.”