Britain said on Thursday it was working with its partners to tackle US concerns over the 2015 nuclear deal between Iran and major powers, but said Tehran must avoid steps that threaten the security of the Middle East. Iran “needs to avoid taking actions which threaten regional security," Britains Minister for the Middle East Alistair Burt told an economic conference in Paris. He specifically pointed to Iran’s supply of ballistic missiles to Houthi insurgents in Yemen. With US President Donald Trump warning of a last chance for "the worst deal ever negotiated", Britain, France and Germany are working on a plan to satisfy him by addressing Irans ballistic missile tests and its regional influence while preserving the 2015 accord. But Iranian Deputy Foreign Minister Abbas Araqchi said Thursday there was no link between its influence in the Middle East region and the nuclear deal. Speaking to Reuters on the sidelines of the same conference in Paris, Araqchi said: “There is no link between the deal and our role in the region." The United States and Europe want Iran to curb its influence in the Middle East.