Secretary of State Rex Tillerson said he'll talk with his Iranian counterpart "at the right time" after elections in Iran saw moderate President Hassan Rouhani returned to power.
"What I would hope is that Rouhani now has a new term and that".
Mr. Tillerson, speaking at a news conference with Saudi Foreign Minister Adel al-Jubeir, said such a shift would improve Iran's relations across the world.
The $6-billion deal for Blackhawks is expected to result in about 450 jobs in Saudi Arabia, reported Arab News.
Tillerson said a centerpiece of US President Donald Trump's visit to Saudi Arabia was to curb any threats to the region posed by Iran, adding that the deals agreed to by both sides send a "strong message to our common enemies".
The foreign minister said that the two states have agreed to stop Iran's funding of terrorism and firing of ballistic missiles as well as its intervention in the internal affairs of the countries in the region.
Tillerson said the arms agreement signed moments before, which will provide Saudi Arabia with border security and counterterrorism tools, cyber security capabilities and air and missile defense equipment, "reduces the burden" on the U.S.to provide those same tools and "lowers the demand on our own military".
The secretary of state said the USA and Saudi Arabia were closely coordinating their efforts to counter Iranian extremism in the region and overseas, "particularly its support for foreign fighters", adding that both countries were closely following how the nuclear deal signed in 2015 "could be used to contain Iran's nuclear aspirations".
The agreement, as well as the president's selection of Saudi Arabia as his first country on his first foreign trip, mark a strengthening relationship between the US and Saudi Arabia.
The secretary of state called upon Iran's president to end all support and financing of terrorist groups now that he has won re-election.