Israeli strikes killed the intelligence chief of Iran's Revolutionary Guards, as the Islamic republic on Monday defied threats from US President Donald Trump to devastate civilian infrastructure if it does not reopen the Strait of Hormuz.

The warring sides kept up their barrage of strikes, with Iranian missiles and drones targeting Israel, Kuwait and the United Arab Emirates, and Israeli strikes hitting Iran and swathes of Lebanon where it is battling Tehran-backed Hezbollah.

The price of diesel fuel has rocketed by more than 30 percent across Europe since the start of the Middle East war highlighting the continent's dependence on imported energy and the lingering prominence of diesel on the car market.

The Easter holiday weekend across Europe is expected to see a surge in demand with queues at petrol stations.

Diesel has been worse hit than other fuels, and was already under pressure before the war. Experts say its cost will rise further -- with a knock-on effect on inflation -- as long as trade through the Strait of Hormuz remains blocked.

April 4 (Reuters) - Australians were urged to maintain their travel plans for Easter weekend although hundreds of petrol stations, mostly in rural areas, were without power on Saturday, as the Iran war continued to strain the nation's fuel ‌supply.

"Easter is a very special time of faith and family," Energy Minister Chris Bowen said in televised remarks. "We encourage people to feel free to stick to your plans, go and see your family, go take a break - but get no more fuel than you need."

As American forces race against time and Iran's military to locate an aviator reportedly shot down Friday, a former Air Force pilot and a rescuer told AFP what it takes to hide, survive and extract someone behind enemy lines.

"You're like, 'Oh my God, I was in a fighter jet two minutes ago, flying 500 miles an hour, and a missile just exploded, literally 15 feet from your head,'" said retired brigadier general Houston Cantwell, who is now at the Mitchell Institute for Aerospace Studies.

By Jonathan Landay, Erin Banco and Phil Stewart

WASHINGTON, April 3 (Reuters) - Recent U.S. intelligence reports warn that Iran is unlikely to open the Strait of Hormuz any time soon because its grip on the world’s most vital oil artery provides the only real leverage it has over the United States, according to three sources familiar with the matter.

By Joshua McElwee

ROME, April 3 (Reuters) - Pope Leo led a candle-lit service with thousands of Catholics inside Rome's famed Colosseum on Friday evening that featured prayers for war orphans and deported immigrant children, and a warning to world leaders that their decisions will be judged by God one day.

The pope, who has emerged as an outspoken critic of the Iran war, listened as an evocative set of spiritual meditations was read aloud inside the ancient amphitheatre to observe Good Friday, the day Christians mark Jesus' death by crucifixion.

April 3 (Reuters) - An unnamed source told Iran's semi-official Fars news agency on Friday that Tehran had rejected a U.S. proposal for a 48-hour ceasefire.

The source said the proposal was made on Wednesday through another country, which was not named.

There was no immediate comment or confirmation from the U.S.

(Reporting by Reuters; Editing by Mark Porter)

By Maya Gebeily and Ahmed Tolba

BEIRUT, April 3 (Reuters) - Israel pounded Beirut with airstrikes on Friday that the military said had targeted militant "infrastructure" in Lebanon's capital, as the U.S. warned that Iran may target universities in the country as the Middle East war rages.

Israel has invaded southern Lebanon and pledged to raze all Lebanese villages in the border area in a fight against Iran-backed Hezbollah militants that has become the most violent spillover of the U.S.-Israeli war with Iran.

One French- and another Japanese-owned vessel are among a handful of vessels to have crossed the war-torn Strait of Hormuz, maritime tracking data showed Friday.

The passage, a vital maritime route for oil and liquified natural gas, has been virtually blocked by Iran since the start of the war.

But both ships made the crossing on Thursday, according to ship tracking company Marine Traffic's website.

By Kentaro Okasaka and Kantaro Komiya

TOKYO/OSLO, April 3 (Reuters) - Three Omani-operated tankers, a French-owned container ship and a Japanese-owned gas carrier have crossed the Strait of Hormuz since Thursday, shipping data showed, reflecting Iran's policy to allow passage for vessels it deems friendly.

Iran initially shut the Strait - a route for about a fifth of global oil and LNG flows - after U.S. and Israeli airstrikes on Iran at the end of February led to a widening conflict. Later, it said it would permit transits by ships with no U.S. or Israeli links.