Iran Fires on Merchant Vessels in Strait of Hormuz, Closes Waterway Again

On Saturday, April 18, 2026, a critical escalation occurred in the Strait of Hormuz when at least two merchant vessels reported being fired upon by Iranian gunboats as they attempted to traverse the crucial waterway [3, 5, 16, 18, 19, 21, 22, 23, 28, 30, 31]. The United Kingdom Maritime Trade Operations (UKMTO) confirmed receiving a report of an incident approximately 20 nautical miles northeast of Oman, where a tanker's captain stated that two gunboats linked to Iran's Revolutionary Guard opened fire without prior radio communication or warning [3, 19, 27, 28, 30, 31]. Fortunately, the tanker and its crew were reported safe, and the vessel sustained no critical damage [3, 16, 19, 21, 27, 28, 30, 31]. A maritime security source also indicated that a container ship was hit by gunfire [5]. Following these incidents, Iran announced a renewed blockade of the Strait of Hormuz, stating that the waterway was closed again due to the United States' continued naval blockade on Iranian ports [3, 5, 16, 18, 22, 23, 30, 31]. Iran's military command accused Washington of breaking its promise and declared that the situation would remain strictly controlled until freedom of navigation for vessels linked to Iran is restored [3, 23]. This development marks a sudden reversal, as Iran had, just hours prior, announced the brief reopening of the strait following negotiations with the US [3, 5, 15, 23, 24]. President Donald Trump had previously stated that Iran had reopened the Strait of Hormuz, but emphasized that the US blockade would persist until a deal with Tehran was reached [3, 15, 24]. The conflicting messages and actions have created uncertainty for global shipping companies [21]. Some vessels reportedly turned back or stopped as they approached Iranian waters before Larak Island, with industry bodies like Bimco describing Trump's statement on the strait being fully open as "inaccurate" and warning of possible mines [17]. The Strait of Hormuz is a vital chokepoint for global energy trade, with approximately one-fifth of the world's oil supply passing through it [4, 6, 26]. Any disruption in its security has immediate consequences for oil prices, shipping routes, and international trade [4]. The ongoing conflict and closures have already led to significant disruptions, with tanker traffic dropping sharply and war-risk insurance premiums surging [11, 26, 34]. Countries in Asia, including India, are heavily dependent on energy imports from the Gulf, making them particularly vulnerable to these disruptions [11]. The situation poses a significant risk to global energy security and could lead to price volatility and economic instability [4, 11, 25, 26, 30]. The Hindustan Times, the source of the original article, is an Indian English-language daily newspaper. While it covers national and international news, its credibility ratings have been mixed, with some sources noting a left-leaning bias and a tendency towards emotionally loaded language, while others describe its reporting on international news as using credible sources and maintaining factual reporting [8, 9, 10, 14]. For this specific incident, the reporting aligns with information from multiple other credible international news agencies like Reuters, Bloomberg, The Guardian, and CBS News, corroborating the core claims of gunfire and the closure of the Strait of Hormuz [1, 2, 5, 6, 15, 16, 18, 19, 21, 22, 23, 27, 28, 30, 31]. The events of April 18, 2026, are part of a larger, ongoing crisis in the region, stemming from a broader conflict that began in late February 2026, involving the US, Israel, and Iran [7, 25, 26]. This crisis has led to a significant decline in maritime traffic through the Strait of Hormuz since February 2026 [7, 26, 34]. The current events underscore the precariousness of the situation and the potential for further escalation.

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