Date: July 16, 2026
By Kimberly Wilson
TEHRAN, Iran — Iran has reportedly instructed Yemen's Houthi movement to prepare to close the southern entrance to the Red Sea if the United States launches attacks against Iran's electricity infrastructure, according to regional sources familiar with the discussions. The reported directive signals another escalation in tensions between Tehran and Washington and has heightened concerns over the security of one of the world's busiest maritime trade routes.
Sources told Reuters that Iranian officials conveyed the message to Houthi leaders during recent consultations, warning that any U.S. strike on Iran's national power grid would trigger a broader regional response. The discussions reportedly focused on the Bab al-Mandab Strait, the narrow waterway connecting the Red Sea to the Gulf of Aden and the Indian Ocean through which a substantial share of global trade and energy shipments passes.
Neither Iran nor the Houthi movement has publicly confirmed the reported instructions. Iranian officials have repeatedly stated that the Houthis make their own military decisions, although Western governments have long accused Tehran of providing the Yemeni group with weapons, intelligence, financial support, and military training. Iran has consistently denied directing Houthi military operations.
The reported warning comes amid escalating tensions between the United States and Iran following renewed U.S. efforts to tighten sanctions and increase military pressure on Tehran. Earlier this week, President Donald Trump ordered a renewed naval blockade targeting Iranian oil exports, prompting Iranian officials to warn that they could respond by threatening strategic maritime routes across the region.
The Bab al-Mandab Strait is one of the world's most strategically important shipping lanes. Millions of barrels of crude oil, liquefied natural gas, and commercial goods transit the passage every day between Europe, Asia, and the Middle East. Any disruption could significantly affect global supply chains, shipping costs, and energy prices.
Since late 2023, Houthi forces have launched numerous missile and drone attacks against commercial vessels in the Red Sea, saying they were acting in support of Palestinians during the Gaza conflict. Those attacks prompted the United States and several allies to increase naval patrols in the region to protect international shipping and deter further assaults on merchant vessels.
Maritime security analysts warn that any renewed effort to block the Bab al-Mandab Strait would have serious global economic consequences. Shipping companies could be forced to reroute vessels around the Cape of Good Hope at the southern tip of Africa, adding thousands of kilometres to voyages, increasing fuel costs, and delaying deliveries of goods and energy supplies.
International governments have continued urging restraint, warning that further escalation could widen instability across the Middle East. Diplomatic efforts remain ongoing to prevent direct military confrontation between Iran and the United States while reducing the risk of disruptions to international trade routes.
Energy markets have been closely monitoring developments in the Gulf and Red Sea regions, where concerns over potential shipping disruptions have contributed to uncertainty in global oil markets. Analysts say even the threat of interference with major maritime chokepoints can influence freight rates, insurance costs, and commodity prices.
As of Thursday, there had been no reports of new attacks on commercial shipping linked to the reported directive. However, military forces from several countries continue to maintain a heightened presence in the Red Sea and surrounding waters while monitoring developments. Regional observers caution that any further escalation between Washington and Tehran could quickly spill over into broader maritime security challenges affecting global commerce and regional stability.