"It's necessary to revise the agreement," Arab League chief Ahmed Abul Gheit said, expressing the "exasperation" of Arab nations in the face of the "destabilising politics" of Iran in the region.

His comments came after Trump defied the wishes of the other parties to the nuclear deal -- France, Britain, Germany, Russia and China -- by announcing the US would pull out of the accord and impose new sanctions on Tehran.

The agreement puts limits on Iran's nuclear programme in exchange of the lifting of international sanctions.

Iran's regional foe Saudi Arabia said it "supports and welcomes" Trump's decision, while Riyadh's Gulf allies the United Arab Emirates and Bahrain also backed the US.

At an Arab League summit last month hosted by Saudi Arabia, the country's King Salman said the regional body agreed to "renew our strong condemnation of Iran's terrorist acts in the Arab region and reject its blatant interference in the affairs of Arab countries".