US Secretary of State John Kerry delivers a statement that sanctions will be lifted on Iran after the International Atomic Energy Agency (IAEA) verified that Iran has met all conditions under the nuclear deal, in Vienna January 16, 2016. [Photo/Agencies]

WASHINGTON - The United States officially lifted nuclear sanctions against Iran on Saturday, when Secretary of State John Kerry confirmed in a statement that the International Atomic Energy Agency had verified that Iran had "fully implemented its required commitments" under the nuclear deal.

According to a senior State Department official, Kerry signed a series of documents including certification to the US government that the IAEA had certified compliance in their report, and waivers to implement lifting of the US Congressional sanctions.