It was the third time this week that back-and-forth strikes have rattled the Middle East.
Secretary of State Marco Rubio indicated last week the Trump administration had "no problem" with providing visas to Iran's team.
Jamshid Ghomi was arrested for allegedly selling U.S. computer tech to the Iranian government, including the agency responsible for the country's nuclear program.
The IRGC said U.S. forces attacked Sirik island.
President Donald Trump gathered with his Cabinet on Wednesday at a precarious moment for talks aimed at ending the war with Iran.
Earlier, Trump said he read a draft of an Iran peace deal.