Many people in Tehran and Tel Aviv are worried that Trump will make good on his threats to attack Iran again, but for some, it's fear laced with hope.

Trump said the fleet was larger than the one he sent to Venezuela, referring to his naval blockade of the South American country to prevent sanctioned oil tankers from leaving.

The president advised Iran make a deal or "the next attack will be far worse."

U.S. allies and partners in the Middle East again are urging restraint from both the United States and Iran as the Trump administration warns of a possible strike and builds up its military presence in the region.

The president threatened Iran with an approaching warship used in the U.S. military's Venezuela operation, urging them to make a nuclear deal.

President Donald Trump demanded that Iran's regime "come to the table" on Thursday, touting a "massive armada" the US has deployed to the region.

Oil rose slightly on signs the U.S. ‍may engage in dialogue with Iran over its nuclear program, reducing concern over potential supply disruptions from a U.S. attack.

Trump on Wednesday revived the threat of military action against Iran and warned “time is running out” for a deal limiting its nuclear program.

Iran-US tensions LIVE updates: While it is not known what Iran's secretary of the Supreme National Security Council and Putin discussed during their meeting on Friday, AFP reported that Russia has offered to play the role of a mediator between the two nations.