Indian destroyer collides with Pakistani frigate in Arabian Sea

In the early hours of September 15, 2026, a routine patrol by an Indian Navy destroyer in the northern Arabian Sea turned into an international incident when the vessel collided with PNS Hunain, a Pakistani frigate. The impact left both ships with superficial damage but raised alarm across diplomatic circles in New Delhi and Islamabad. The event, which has already been described by Indian officials as “unacceptable” and “unsafe,” has reignited a long‑standing maritime dispute rooted in a 1991 agreement that governs the conduct of naval vessels from the two states while operating in international waters..

The 1991 “Safe Navigation Agreement” was signed when both countries were still under tight international scrutiny. It sets a minimum separation distance of 1,000 nautical miles between warships when they are within 200 nautical miles of the territorial sea of the other nation. In addition, the agreement requires that vessels maintain a safe speed and use established traffic separation schemes to reduce the risk of collisions.The Indian destroyer, named INS Khanderi, was on a standard surveillance mission that day, monitoring maritime traffic in a zone frequently used by commercial shipping and naval patrols from both sides..

According to a statement issued by the Navy’s press cell, the ship was following a prescribed route and had maintained the required distance from the Pakistani coast. An eyewitness aboard the Pakistani frigate, which was conducting a joint exercise with a regional partner, reported that the two vessels were on converging courses when the collision occurred. The impact was described as a “hard but brief contact” that caused minor hull damage but did not compromise the operational integrity of either vessel.The first responders on board both ships were the crews of the INS Khanderi and PNS Hunain, who conducted initial damage assessments and coordinated with their respective command centres..

In both cases, the crews were able to secure the damaged areas and prevent any flooding. The Indian Navy’s preliminary report, released within hours of the incident, noted that the impact had caused superficial dents to the superstructure of the destroyer and a small breach in the hull plating of the frigate, neither of which required immediate repairs at sea. Pakistani officials issued a similar statement, confirming that the frigate had sustained only minor damage and that the crew had followed standard damage control procedures.The collision has prompted a swift diplomatic response from both governments..

The Indian Ministry of External Affairs issued a statement condemning the incident and demanding an immediate investigation. “The safety of maritime navigation is paramount, and this collision demonstrates a blatant disregard for the rules that govern naval operations,” the statement read. In Islamabad, the Ministry of Foreign Affairs called for a joint inquiry and expressed concern that the incident could strain an already delicate relationship between the two neighbours.Both sides have invoked the 1991 agreement to argue for accountability..

Under Article 4 of the agreement, any incident that occurs within the specified zone must be reported to a joint naval committee established by the two countries. That committee is currently convened and is expected to convene within the next 48 hours. The committee’s mandate includes an investigation into the circumstances of the collision, an assessment of compliance with navigation rules, and a recommendation for any remedial measures..

The committee will be chaired by senior naval officers from each country and will include representatives from their respective maritime authorities.Analysts point to the broader context of the incident, noting that tensions in the Arabian Sea have been on the rise in recent months. The area is a critical artery for oil shipments and commercial traffic, and both India and Pakistan have significant strategic interests in maintaining freedom of navigation. In addition to the 1991 agreement, the region is governed by the United Nations Convention on the Law of the Sea, which sets out principles for the conduct of naval forces in international waters..

The collision could test the robustness of these frameworks and potentially set a precedent for how similar incidents are handled in the future.The immediate aftermath of the collision has seen a flurry of activity on both sides of the maritime boundary. Indian naval officers have been conducting debriefings with the crew of INS Khanderi, while Pakistani counterparts are coordinating with the fleet commander of PNS Hunain. Both navies have also been engaged in a review of their navigation protocols to prevent recurrence..

The Indian Navy has reiterated that it will continue to adhere strictly to the Safe Navigation Agreement, while Pakistani officials have stated that the frigate was operating under a joint exercise schedule and was aware of the separation guidelines.The incident has also attracted the attention of international maritime organisations. The International Maritime Organization has issued a statement expressing its concern and reaffirming the importance of adhering to established navigation rules. Meanwhile, the maritime industry, which relies heavily on the stability of the Arabian Sea, has called for a comprehensive review of safety measures for naval vessels operating near commercial shipping lanes.In the days that follow, the joint naval committee will likely publish a report detailing the findings of its investigation..

Should the committee find that one side breached the terms of the 1991 agreement, it could lead to diplomatic repercussions, including the suspension of certain joint exercises or the tightening of maritime protocols. Conversely, a shared conclusion that the collision was a tragic but unavoidable accident might ease tensions and reinforce the need for continued cooperation.As the two navies work to repair the damaged vessels, attention will shift to the larger diplomatic negotiations. Both governments have signalled a willingness to resume dialogue on maritime security, recognising that incidents such as this undermine regional stability..

The outcome of the joint inquiry and the subsequent diplomatic engagements will be closely watched, as it will signal whether the two countries can maintain a constructive relationship in the maritime domain..