President Trump suggested on Thursday that his administration would consider military action against Iran in response to its decision over the weekend to test a ballistic missile.

"Nothing is off the table" when it comes to dealing with Iran, Trump said before a meeting with Harley-Davidson executives at the White House.

One day earlier, National Security Adviser Mike Flynn said the administration was "officially putting Iran on notice" over its latest actions, which included the missile test and a suicide attack on a Saudi Arabian naval ship carried out by Iranian-backed Houthi militants off the coast of Yemen.

But the administration has not specified what actions it is considering in response to the provocative moves.

"I think Gen. Flynn was really clear yesterday that Iran has violated the joint resolution," White House press secretary Sean Spicer said on Thursday.

Spicer said he would have updates on "additional actions" but wanted to "make sure that Iran understood that they are on notice and this is not going unresponded to."

House Speaker Paul Ryan and Sen. Lindsey Graham are among the Republican lawmakers who have called on the Trump administration to push for renewed sanctions against Iran to retaliate for the missile test and for the hostile activity of the rebel group backed by Tehran.

The U.S. and other countries lifted strict sanctions against Iran in January 2016 after its leaders signed onto a deal that is supposed to prevent the country from obtaining nuclear weapons for more than a decade.

However, the deal contains "snapback" provisions that were designed to allow the U.S. or other countries to reimpose the sanctions quickly if Tehran violates the terms of the nuclear agreement.

Iranian leaders claim their missile test did not violate the deal because the missile they launched on Sunday was not capable of carrying a nuclear warhead. The agreement specifically prohibits the use of nuclear-capable weapons.

But the test did violate a United Nations resolution against such activity, U.S. officials have said. The Trump administration requested an emergency meeting of the U.N. Security Council on Monday to discuss how to handle Iran's violation of the resolution.