WASHINGTONIsrael has targeted at least a dozen vessels bound for Syria and mostly carrying Iranian oil out of concern that petroleum profits are funding extremism in the Middle East, U.S. and regional officials say, in a new front in the conflict between Israel and Iran.Since late 2019, Israel has used weaponry including water mines to strike Iranian vessels or those carrying Iranian cargo as they navigate toward Syria in the Red Sea and in other areas of the region. Iran has continued its oil trade with Syria, shipping millions of barrels and contravening U.S. sanctions against Iran and international sanctions against Syria.Some of the naval attacks also have targeted Iranian efforts to move other cargo including weaponry through the region, according to U.S. officials.

The attacks on the tankers carrying Iranian oil havent been previously disclosed. Iranian officials have reported some of the attacks earlier and have said they suspect Israeli involvement.

Israel hasnt commented previously on such incidents and Israeli Prime Minister Benjamin Netanyahus office referred questions to the Israeli military, which declined to comment on any Israeli role in the attacks on the Iranian ships. Iranian officials at the countrys United Nations mission didnt respond to a request for comment.

Damascus has said disruptions of Iranian oil imports are causing shortages for Syrians. Syria and Iran have denied funding terrorism and say their alliance is aimed at countering such crime.

The disclosure of the Israeli campaign at sea marks a new dimension in its campaign to counter Irans military and economic entrenchment and its support of allied groups in the region. Since 2018, Israel has conducted hundreds of airstrikes, mostly in Syria, to rout Iranian-backed groups, weapons and influence across the region.

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The disclosure also comes amid escalating tensions in the region and as the Biden administration considers its approach to confront Iran. The administration has said it wants to return to the 2015 international agreement on Irans nuclear program, but progress has stalled over demands by each side for concessions by the other.

Irans Syria-bound oil cargoes are controlled by officials from Irans Islamic Revolutionary Guard Corps, the U.S. has alleged in court cases filed to seize the ships. The purpose of the Iranian operations are to circumvent sanctions on both Iran and Syria to fund IRGC, these court cases say. Such tankers often carry hundreds of millions of dollars worth of oil.

Shippers often declare false destinations, use old, rusted tankers to avoid notice, and sometimes transfer oil from one ship to another at sea to avoid detection, regional military officials said.

Israel has also publicly accused Iran of subterfuge and sabotage in recent weeks. Mr. Netanyahu last week blamed Iran for an explosion that ripped through the MV Helios Ray, an Israeli-owned cargo ship. Irans Foreign Ministry denied it was behind the attack.

U.S. officials blamed Iran for a string of 2019 attacks on tankers in the Persian Gulf region, some using mines.

Israels environmental protection minister, Gila Gamliel, last week also accused Tehran of being behind Israels largest-ever ecological disaster, an oil spill of hundreds of tons of tar that covered Israels 100-mile plus coastline last month. Israels Defense Minister Benny Gantz said Israel had no evidence to suggest that Iran deliberately caused the oil spill.

Experts say the string of attacks against Iranian tankers has stemmed from perceived inaction by the international community, particularly after Iran broke a promise not to deliver oil to Syria from a seized tanker.

Israel stepped up the game beyond sanctions to sabotage.

Mark Dubowitz, chief executive of the Foundation for Defense of Democracies

Mark Dubowitz, chief executive of the Foundation for Defense of Democracies, a think tank that opposes the Iran deal and urges a hard line against Tehran, said Israel and the U.S. have long set their sites on Iranian oil revenue.

Israel stepped up the game beyond sanctions to sabotage, he said. The Red Sea sabotage is keeping with a broader economic warfare campaign.

Among the dozen attacks on ships carrying Iranian oil are three such strikes in 2019, according to a shipping professional. Ships used by the Islamic Republic were targeted six times in 2020, according to a second shipping professional, in Tehran.

The second professional said Tehran has kept quiet on the attacks. We are trying to keep a low profile, he said. It would look like a sign of weakness if Iran complained and failed to react with a military response, he said.

In an episode last month, suspected Israeli operatives attached a limpet mine to attack an Iranian vessel as it anchored near Lebanon to deliver Iran oil to Syria, according to the first shipping professional. Israels military declined to comment on the incident.

Limpet mines are typically attached secretly to the hull of ships in port and detonated later, blowing holes in the sides of the vessels.

The Biden administration’s first known military action was an airstrike on facilities used by Iran-backed militia groups, in response to earlier attacks against U.S. forces. Defense Secretary Lloyd Austin said he was confident the U.S. had hit its target. (First published 2/26/2021) Photo: Alex Brandon/Associated Press

On Thursday, a Telegram messaging channel close to the Iranian navy posted pictures purporting to show a fire on board an Iranian contained vessel, the Shahr e Kord, near Latakia, Syria. It said the vessel had been attacked by missiles. It couldnt be determined whether the incident was related to other strikes on Iranian vessels.

The attacks attributed to the Israelis havent led to reports of any sunken ships, but the detonations have forced at least two ships to return to port in Iran, thus delaying the delivery to Syria of the fuel on board, Iranian shipping professionals say.

U.S. officials provided tacit U.S. support during the Trump administration for such attacks, according to a person familiar with the matter. The two countries have had a longstanding intelligence-sharing relationship and the U.S. has backed prior Israeli strikes in Syria.

At the very least, there is no indication the U.S. would stand in Israels way, analysts said.

As long as the [Biden] administration believes the Israelis are remaining below the threshold of major escalation or conflict, I dont think they are going to get in the way of things Israel feels it needs to do to protect itself, said Ilan Goldenberg, a senior fellow at the Center for New American Security in Washington.

Jake Sullivan, the White House national security adviser, met virtually Thursday with Israeli National Security Advisor Meir Ben-Shabbat to discuss a range of issues, with matters involving Iran a centerpiece of their discussions, officials said.

Write to Gordon Lubold at [email protected] and Benoit Faucon at [email protected]

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