It follows daytime attacks from both sides, with Israeli strikes in Tehran continuing and Iran firing more missiles towards Israel.

The military exchanges worsened between Israel and Iran overnight on Monday as strikes hit residential areas, killing and wounding civilians on both sides.

The Israeli military claims its campaign has eliminated high-value targets, including nine senior scientists, and severely damaged Iran’s nuclear infrastructure. Iranian authorities confirmed damage to four critical buildings at the Isfahan uranium conversion facility,

The UK government is trying to walk a tightrope on relations with Israel, expressing support for its military action against Iran while also criticizing the war in Gaza.

An exchange of strikes on refineries and gas facilities was limited but raised the risks to an industry with broad economic impacts.

"The full strength and might of the U.S. Armed Forces will come down on you at levels never seen before," Trump warned.

Front-month WTI crude-oil futures were last up 1.3% at $73.90 a barrel, while front-month Brent climbed 1.1% to $75.04 a barrel. That followed a surge on Friday when news of Israel's attack first broke, sparking double-digit percentage gains.

The "America First" president praised his foreign policy record on Sunday while urging a deal between Iran and Israel amid escalating strikes.

Trump and Putin spoke for about an hour on June 14, with the Kremlin saying the Russian leader condemned the Israeli military operation against Iran

Arab states that once opposed Iran now condemn Israel’s June 13 strikes, reflecting shifting alliances and fears of regional escalation.