Iran’s ambassador in Geneva derided as “hostile” and “unwarranted” U.S. President Donald Trump’s comments calling for Iran’s “unconditional surrender.”

Ambassador Ali Bahreini told reporters the Israeli campaign “has not been able to bring big damage to our nuclear facilities” because it had taken precautions to protect them.

Iran's supreme leader Ayatollah Ali Khamenei said Wednesday the nation would never surrender as demanded by President Donald Trump and warned the United States it would face "irreparable damage" if it intervenes in support of its ally.

The speech came six days into the conflict, with Trump demanding Iran's "unconditional surrender" while boasting the United States could kill Khamenei and fueling speculation about a possible intervention.

The United States is setting up a round-the-clock task force to help Americans in the Middle East during the Israel-Iran conflict, officials said Tuesday.

U.S. President Donald Trump met his National Security Council on Tuesday to discuss the Iran-Israel war, the White House said, as the U.S. leader considered whether to join Israel's air campaign against Tehran.

Israel said it struck a nuclear site near Tehran on Wednesday, while Iran said it fired hypersonic missiles as the arch foes traded fire for a sixth day.

Hours after U.S. President Donald Trump demanded Iran's surrender, supreme leader Ayatollah Ali Khamenei vowed his country would show "no mercy" towards Israel's leadership.

U.S. President Donald Trump met with his national security team in the White House Situation Room on Tuesday to make decisions about U.S. policy towards the war between Israel and Iran, three U.S. officials told U.S. news portal Axios.

U.S. President Donald Trump dramatically stepped up his rhetoric against Iran's supreme leader Tuesday, saying on social media that the United States knows where Ayatollah Ali Khamenei is located but will not kill him "for now."

In another post, Trump also appeared to demand Iran's "UNCONDITIONAL SURRENDER!" as he fueled questions about whether the United States would join Israel's attacks on Tehran's leadership and nuclear facilities.

Iran has banned government officials and their bodyguards from using all communication devices linked to the networks. The ban, announced Tuesday, includes mobile phones, smart watches and laptops.

Iran did not elaborate on the reason for the ban, which was reported by the semiofficial Fars news agency. However, it suggests Iran suspects Israel used digital signatures from electronics to launch its strikes, which have decimated Iran’s military leadership.

Since Israel launched a barrage of strikes on Iran last week and Iran retaliated with missile and drone attacks against Israel, neighboring countries have been in the flight path.

Outside the scope

Air raid sirens sounded in the Tel Aviv area and parts of northern Israel on Tuesday, the military said, after warning of a fresh salvo of incoming missiles fired from Iran.

"A short while ago, sirens sounded in several areas across Israel following the identification of missiles launched from Iran toward the state of Israel," a statement from the military said, with residents of the Tel Aviv area and parts of the north urged to seek shelter.