Iran's foreign minister warned earlier Sunday that the Islamic Republic "reserves all options to defend its sovereignty" after U.S. airstrikes.

The vote took place Sunday after the U.S. on Saturday evening hit three Iranian nuclear sites and significantly damaged the country's capabilities.

Possibility of Iran shutting the Strait of Hormuz, a key lane for Middle Eastern oil and gas shipments, is remote despite U.S. attacks on its nuclear sites. Here's why.