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

The two powers have been exchanging barrages since Israel attacked Iran and killed many of the country’s top military leaders and scientists.

Discussing the conflict between Israel and Iran, the former vice president said Trump "ought to be looking elsewhere than Vladimir Putin for advice."

Crude oil futures jumped more than 3% Sunday after Israel struck two natural gas facilities in Iran, raising fears that the war will expand to energy infrastructure and disrupt supplies in the region.

Israel hit more targets in Tehran and Iranian missiles fired at Israel killed at least 14, as the conflict entered a third day

U.S. oil prices already jumped last week, which could cause prices at the pump to rise about 20 cents a gallon in the coming weeks, according to one estimate.

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

Fear and worry grip Iranians as Israel vows to continue attacking the Islamic Republic over its nuclear program, with many fleeing the bigger cities, including the capital Tehran, in search of safer areas.

It is the first time that Britain has advised against travel to any part of Israel since 2013, when the FCDO set up its dedicated travel advice pages. Starmer has not ruled out offering air support to defend Israel from Iranian attacks, as additional RAF fighter jets and other military aircraft were deployed to the Middle East.

New targets appear to indicate an expansion of Israel’s war aims beyond the Iranian nuclear facilities that consumed the first days of the conflict.