Washington (AFP) - Saudi Foreign Minister Adel al-Jubeir warned Iran Thursday to use the economic benefits of a new nuclear deal to help its people and not fund "adventures in the region."

"If Iran should try to cause mischief in the region we're committed to confront it resolutely," Jubeir said after meeting US Secretary of State John Kerry, days after the landmark deal was struck granting Tehran sanctions relief in return for dismantling and mothballing most of its nuclear program.