President Trump says US Navy will begin blockade of Strait of Hormuz

President Donald Trump told Fox News on Tuesday that the strikes on Iran that he promised would begin at 8:00 p.m. Tuesday are “happening,” but cautioned that things “could change.”

Trump’s comments come just hours after the president said "a whole civilization will die tonight never to be brought back again" if a deal was not reached between the U.S. and Iran.

Trump told Fox News that if negotiations were successful then plans for strikes could change, but confirmed that the U.S. was preparing for his deadline.

Iran continued to launch projectiles at Israel and Gulf nations on Tuesday, authorities said.

Kuwait's armed forces "dealt with" 17 drones over the past 24 hours, the country's Army General Staff Headquarters said in a post on X Tuesday.

Saudia Arabia said 22 drones were intercepted, in separate posts by the Ministry of Defense on Tuesday.

Air defenses in the United Arab Emirates "successfully engaged" 11 drones and one ballistic missile, the Ministry of Defense said in its post on X

Nine drones were added to the total number of interceptions by the Bahrain Defense Force, in a post on Instagram Tuesday.

Damage was reported at several sites after missiles targeted central Israel. Only minor injuries were reported.

-ABC News' Othon Leyva Jr. and Jordana Miller

The U.S. embassy in Bahrain is directing all American government personnel and U.S. nationals in the country to shelter in place "until further notice," according to a security alert.

"To the extent possible, remain in a secure structure, and stay away from windows. Have a supply of food, water, medications, and other essential items," the alert said.

The embassy also notes it has suspended all routine consular services, which has been the case since last month.

The U.S. embassy in Bahrain never officially dropped its shelter in place order for government personnel and advisement for U.S. nationals that was put into place soon after the attacks on Iran began.

-ABC News' Shannon K. Kingston

Israeli attacks targeted bridges and railway lines in the Iranian cities of Kashan, Qom, Tabriz, Ahwaz and Zanjan, causing casualties, disruption and halting transportation, according to Iranian media.

Train traffic on several routes, including those to the city of Mashhad, has reportedly been suspended until further notice

Israeli airstrikes have also damaged some roads and freeways. The Tabriz–Zanjan freeway and the old Qarachaman–Mianeh road have been closed due to projectiles.

The Israel Defense Forces confirmed strikes on Iranian railways in a statement on Tuesday. The IDF said that "eight bridge segments" were hit, claiming that they were used "for transporting weapons and military equipment in several areas across Iran, including Tehran, Karaj, Tabriz, Kashan, and Qom."

The Israel Defense Forces' Farsi language X account on Tuesday morning issued a warning to all Iranians to "refrain from using and traveling by train throughout Iran" until 9 p.m. local time.

"Your presence on trains and near railway lines endangers your life," the post said.

-ABC News' Somayeh Malekian and Jordana Miller