Egypt’s decision was revealed a day after President Fattah al-Sisi visited US leader Donald Trump in the White House.
The withdrawal deals a blow to Washington’s effort to forge the Middle East Security Alliance, or MESA, with Sunni allies in the region.
The alliance was set to include Bahrain, Jordan, Kuwait, Oman, Qatar, Saudi Arabia, and the United Arab Emirates, according to press reports.
The North African country is reportedly concerned the establishment of the Alliance could soar tensions with Iran, besides the fact that the formal blueprint for the pact is not ready yet.
Egyptian authorities also reportedly fear that Trump might not be re-elected next year and his successor could scrap support for the initiative
The decision was also announced to other Arab counties and Egypt on Sunday did not send a delegation to Riyadh for the latest gathering held to advance the initiative.