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A member of the Iranian Revolutionary Guards checks a missile inside an underground depot in an undisclosed location, Iran, in this handout photo released by the official website of Islamic Revolutionary Guard Corps (IRGC) on March 8, 2016. REUTERS/sepahnews.com/Handout via Reuters(reuters_tickers)
MUNICH (Reuters) - U.S. Republican senators plan to introduce legislation to impose further sanctions on Iran, accusing it of violating U.N. Security Council resolutions by testing ballistic missiles and acting to "destabilise" the Middle East, a U.S. senator said Sunday.
"I think it is now time for the Congress to take Iran on directly in terms of what they’ve done outside the nuclear programme," Senator Lindsey Graham, a member of the Senate Armed Services Committee, told the Munich Security Conference.
Graham said he and other Republicans would introduce measures to hold Iran accountable for its actions.
Tensions between Tehran and Washington have risen since an Iranian ballistic missile test that prompted U.S. President Donald Trump's administration to impose sanctions on individuals and entities linked to the country's Revolutionary Guards.
"Iran is a bad actor in the greatest sense of the word when it comes to the region. To Iran, I say, if you want us to treat you differently then stop building missiles, test-firing them in defiance of U.N. resolution and writing 'Death to Israel' on the missile. That's a mixed message," Graham said.
Iranian Foreign Minister Mohammed Javad Zarif told the conference earlier on Sunday that Iran did not respond well to sanctions or threats.
James Jones, a former Supreme Allied Commander in Europe and President Barack Obama’s first national security adviser, told a separate event in Munich that he remained convinced that sanctions had persuaded Iran to negotiate the 2015 landmark deal with six world powers to curb its nuclear programme.
"The sanctions did work. Iran would never have come to the negotiating table without sanctions," Jones said. "This is a new form of response that if properly utilised can change behaviour and get people to do things that they otherwise wouldn't do."
Senator Christopher Murphy, a member of the Senate Foreign Relations Committee, told the same panel there was nothing preventing Congress from imposing sanctions beyond those that were lifted as a result of the 2016 nuclear agreement with Iran.
Murphy, a Democrat, said had backed the nuclear deal in the explicit understanding that it would not prevent Congress from taking actions against Iran outside the nuclear issue.
"There's going to be a conversation about what the proportional response is," Murphy said, referring to Iran's missile test. "But I don't necessarily think there's going to be partisan division over whether or not we have the ability as a Congress to speak on issues outside of the nuclear agreement."
Murphy said the United States needed to decide whether it wanted to take a broader role in the regional conflict.
"We have to make a decision whether we are going to get involved in the emerging proxy war in a bigger way than we are today, between Iran and Saudi," he said.
(Reporting by Andrea Shalal and John Irish; Editing by Jane Merriman and David Goodman)