Shibbir Ahmed, New York — Iran has said the strategically vital Strait of Hormuz will remain closed despite efforts to revive regional diplomacy, as a planned meeting between Iran and Gulf states was postponed and concerns over global energy supplies continued to grow.

Iranian Foreign Minister Abbas Araghchi said an agreement reached with Oman over arrangements for maritime traffic through the strait would not mean the waterway would be reopened. Tehran has linked any reopening to the United States returning to commitments made under an earlier peace understanding.

The planned meeting in Oman, which was expected to bring together Iran, Iraq and Gulf Arab states to discuss navigation through the Strait of Hormuz, was postponed on Monday. Oman’s Foreign Minister Badr Albusaidi said the delay was intended to allow more time to build consensus among the participating countries.

The diplomatic setback comes as tensions around the region’s major energy routes continue to rise. Shipping traffic through Hormuz has fallen sharply, with only a small number of commodity vessels recorded passing through the waterway over the weekend, well below the recent daily average.

The Strait of Hormuz is one of the world’s most important energy chokepoints, carrying a significant share of global crude oil and liquefied natural gas supplies. Disruption to the route has already contributed to a sharp increase in oil prices, with Brent crude rising above $107 a barrel on Monday.

Iran has also warned vessels that violate its maritime protocols. Its Strait Authority issued an updated list of 77 vessels accused of violating Iranian rules and warned that sanctioned ships could face penalties including fines, detention or confiscation.

The stalled diplomacy has increased fears that the disruption could persist, putting further pressure on global energy markets, shipping costs and economies dependent on Gulf oil and gas.

Shibbir Ahmed, WASHINGTON DC — The United States is preparing to intensify economic pressure on Iran with a new campaign of weekly secondary sanctions, Treasury Secretary Scott Bessent said Monday, as military tensions between Washington and Tehran sharply escalated.

Bessent told Reuters that the U.S. Treasury Department is expected to announce new secondary sanctions every week, beginning with measures targeting banks and financial institutions that help Iran maintain access to international markets.

The planned measures are designed to further restrict Iran’s access to the global financial system and increase pressure on institutions and countries that continue doing business with Tehran. The announcement comes as the United States and Iran have entered their most serious period of renewed hostilities in weeks.

U.S. forces struck two Iranian launchers on Larak Island on Sunday after American forces identified what U.S. officials said were preparations by Iran’s Islamic Revolutionary Guard Corps to launch rockets carrying sea mines into the Strait of Hormuz.

Iran responded by launching missiles toward U.S. military bases in Jordan, according to U.S. and Iranian officials. The attacks marked the first direct exchange of fire between the two sides in about a month. President Donald Trump on Monday warned that the United States would respond forcefully to Iran’s attacks. The latest escalation has raised concerns about a wider regional conflict, particularly because of the strategic importance of the Strait of Hormuz, a critical route for global oil shipments.

Financial Pressure on Iran

The planned sanctions would expand the use of so-called secondary sanctions, which can penalize foreign companies, banks and other institutions that conduct certain business with Iran even when those entities are not based in the United States.

Bessent said the campaign would initially focus on banks and could increasingly target institutions that help Iran move money through the international financial system. The Treasury secretary’s announcement represents a further expansion of the administration’s economic campaign against Tehran.

The United States has already broadened the range of Iranian economic activities that could expose foreign businesses to secondary sanctions, including sectors such as digital assets, gold, technology, aviation and shipping.

Last week, the Treasury Department launched what it described as an unprecedented campaign against Iranian financial networks, targeting channels used by Tehran to generate revenue, evade sanctions and finance activities opposed by Washington.

Military Tensions Add to Economic Pressure

The new sanctions strategy comes as diplomatic and military tensions continue to worsen. The U.S. military said its strike on Larak Island was aimed at preventing Iran from deploying sea mines in the Strait of Hormuz. Iran has rejected the U.S. justification and warned that it would respond to further attacks.

Following the Iranian missile launches toward U.S. forces in Jordan, Trump said the United States would respond strongly. Reuters reported that the exchange of attacks represents a renewed escalation after a period in which the two sides had avoided direct military confrontation.

The conflict has also affected global energy markets. Brent crude oil futures settled more than 2.5% higher on Monday after the latest U.S.-Iran military exchanges, reflecting renewed concerns over the security of oil shipments through the Strait of Hormuz.

Pressure on Iran’s Financial Lifelines

The Trump administration has increasingly focused on Iran’s financial networks as part of its broader strategy to weaken Tehran’s ability to fund its government, military and regional activities.

The planned weekly sanctions would represent a significant escalation because foreign financial institutions could face increasing pressure to choose between maintaining business relationships with Iran and retaining access to the U.S.-dominated international financial system.

For Iran, the measures could further complicate access to foreign currency, international banking services and overseas trade. For the United States and its allies, however, the strategy carries its own risks, particularly if increased economic pressure contributes to further military escalation or disruption of global energy supplies.

With the United States preparing additional sanctions and military tensions rising, the coming days could determine whether the latest confrontation remains limited or develops into a broader regional crisis.