US Secretary of State John Kerry (L) speaks with Egyptian Foreign Minister Sameh Shukri before a meeting at the Ministry of Foreign Affairs in Cairo August 2, 2015. [Photo/Agencies]

CAIRO -- US Secretary of State John Kerry said on Sunday that a nuclear deal reached between Iran and world powers would make Egypt and the region "safer than they otherwise would be."

"We are completely grateful for Egypt's support in the Iranian nuclear deal," Kerry told a press conference in Cairo.

He added Iran is part of instability in several countries in the region and the nuclear program should be peaceful so we can discuss the future of security in the region.

Experts said that Kerry's trip, which ends on Aug. 8, came to assure the region, the Gulf countries in particular, over the expansion of the Iranian influence after the nuclear deal was signed on July 14.