The findings come after Iran repeatedly threatened over the past month to attack submarine cables and data centers in the Strait of Hormuz if Washington and Israel launch another military offensive.
Hassan Divband, Hamid Kazemi, and Reza Zanganeh were executed after Iran's Supreme Court upheld their death sentences, according to judicial authorities.
Reuters could not independently verify the account. Saudi Arabia's Center for International Communication said it was investigating the report.
Interior Minister Brig-Gen Ibrahim Haidan said in a statement published by the ministry on Tuesday that the group included 14 IRGC members and seven Hezbollah operatives working across Yemen.
The source and nature of the explosions have not yet been reported.
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Erdogan told Trump that Turkey would also continue to contribute to efforts to end the war in Ukraine and that contacts with both Kyiv and Moscow should be intensified.
Saudi Arabia has been locked in worsening hostilities with the Iran-backed Houthis since July, when the wider conflict in the Middle East reignited the Yemen war.
He stressed that any Iranian regime loyal to the Islamic Revolution "will always have the motivation to restore its capabilities," warning that this would include nuclear weapons if given the chance.
Task Force Iron Gate, as it will be called, will be based in Tampa, Florida, and will coordinate with other US government agencies.
Syrian intelligence said it seized explosives and arrested two suspects identified only by their initials, a day after a Lebanese ministerial delegation visited Damascus.
