Iran has threatened retaliation if its energy infrastructure is attacked again, while US President Donald Trump endorsed Israeli Prime Minister Benjamin Netanyahu ahead of a tightly contested election.

Tehran, meanwhile, said its offer to reopen the Strait of Hormuz remains on the table, even as its military reported that a supertanker had hit a naval mine while using an unauthorized route.

It was the latest such incident since Iran tightened its control of the key waterway after war erupted on Feb 28 following US and Israeli strikes on Iranian territory.

READ MORE: Iran says its 7-day plan to reopen Hormuz Strait still on table

Iran's Islamic Revolutionary Guard Corps said on Monday that the tanker had taken the strait's "unauthorized southern route" and disabled its positioning and navigation systems. The Fars News Agency quoted the IRGC as saying the vessel "exploded and caught fire in its engine room after hitting a naval mine in the southern Strait of Hormuz".

The incident came after Trump endorsed Netanyahu on Sunday, bolstering the veteran leader's bid for another term.

"If Israel has the wrong leader, which would be anyone other than Bibi, America will have to do this work ourselves, and I am not inclined to do so," Trump wrote on Truth Social, using Netanyahu's nickname.

Netanyahu said in a video later that his close ties with Trump could help "eliminate the Iranian threat" if he wins the election.

In response, Iranian Foreign Minister Abbas Araghchi accused Netanyahu of "driving America into another war to stay out of jail".

"Last time you wanted to 'finish the job', Iran emerged even stronger. Want to try your luck again? Be our guest. But be careful: We have unfinished jobs too," he wrote on X.

Araghchi said Tehran's proposal to reopen the Strait of Hormuz within six days and resume negotiations with the United States on the seventh remains on the table.

Amid the escalating conflict, the US issued security alerts across 12 Middle Eastern countries on Sunday, warning of potential threats from Iran or Yemen's Houthi militia and possible flight cancellations, airspace closures and travel disruptions. The countries included Saudi Arabia, the United Arab Emirates, Kuwait, Iran, Lebanon, Yemen and Israel.

Following an attack on Riyadh's King Khalid International Airport that killed 13 people on Oct 10, Egypt said on Sunday it was ready to support Saudi Arabia in safeguarding its security and stability.

Fighting between the Saudi-led coalition backing Yemen's internationally recognized government and the Houthis, who control Sanaa and much of the north, has opened another front amid the US-Israeli confrontation with Iran.

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At least 53 soldiers were killed and more than 200 were injured on Monday when three missiles struck the al-Alam military camp in Yemen's Shabwa Province, provincial authorities said.

The Houthis have acknowledged targeting the camp.

Al-Alam is a large military facility in Jardan district used by forces aligned with Yemen's internationally recognized government and supported by the Saudi Arabia-led coalition.

Agencies contributed to this story.

Contact the writers at cuihaipei@chinadaily.com.cn