The war in the Middle East expanded on multiple fronts Monday, with attacks from Iran and Iranian-backed militias hitting Israel and Arab states.

Explosions have been heard in multiple Gulf cities including Dubai, Abu Dhabi and Doha, while Israel and Hezbollah are trading blows as the war with Iran widens. Follow for live coverage.

Four Gulf states” are going to "respond offensively" against Iran following its retaliatory strikes in the Middle East, a ...

Follow NBC News' live coverage as the U.S. and Israel attack Iran, Tehran hits back across the Gulf and Hezbollah strikes from Lebanon while Iran chooses a new supreme leader after the killing of ...

US and Israel launched “preemptive” strikes on Iran, killing Khamenei and escalating the conflict. Iran retaliated by ...

Ayatollah Alireza Arafi was named to Iran's interim leadership council following the killing of Supreme Leader Ayatollah Ali ...

"Widening the lens to the entire Middle East, the situation is sliding into a more dangerous and unpredictable new phase," said an analyst.

Iran and Iranian-backed militias fired missiles at Israel and Arab states, apparently hitting the U.S. Embassy compound in ...

US Iran War Live Updates: As the Iran-US conflict enters Day 3, Kuwait and Lebanon reported major attacks through the day. In Lebanon, Israel and Hezbollah renewed their strikes against one another.

Israel says its attacks were in response to strikes from Hezbollah. In Kuwait, the local military says "several" US warplanes ...

"The board has no difference of opinion on this. The TDB is constituted under rules that mandate the protection of the temple and its traditions. So we will contest the decision of the Supreme ...