On September 15, 2026, a Pakistan Navy corvette collided with an Indian Navy warship in the North Arabian Sea after approaching it at high speed and manoeuvring in an 'unsafe and unprofessional' manner, according to Defence Ministry sources. The incident occurred in international waters during a routine surveillance mission by the Indian vessel. The Pakistan Navy vessel, PNS Hunain (F-273), sustained damage and returned to port, while the Indian ship suffered minor damage and continued its mission. No casualties were reported.

The Indian Ministry of External Affairs summoned Pakistan’s Chargé d’Affaires in New Delhi and lodged a strong diplomatic protest over the incident. The ministry stated that the conduct of the Pakistani naval unit contravened Article 10 of the 1991 India-Pakistan Agreement on Advance Notice on Military Exercises, Manoeuvres and Troops Movements. The agreement requires both nations to provide prior notice of military activities and ensure such exercises are not directed against the other side. The Pakistani diplomat was instructed to convey the need for all military units to observe due care and respect the provisions of the bilateral agreement.

The incident follows a pattern of increased naval activity in the Arabian Sea, with both countries deploying assets in the region. The exact circumstances of the collision remain under investigation by both sides. The Indian Chargé d’Affaires in Islamabad has been directed to lodge a similar protest with Pakistan’s Ministry of Foreign Affairs. The PNS Hunain, a Yarmook-class offshore patrol vessel commissioned in July 2024, is designed for maritime security, surveillance, and patrol missions.

Former Navy spokesperson Captain DK Sharma warned that the incident could lead to a 'very dangerous situation' if such unprofessional conduct continues. Sharma emphasized the importance of maintaining safe distances and adhering to maritime rules. He stated that the protest was a clear warning to Pakistan, and that India would not tolerate such actions in the future. The MEA confirmed that the protest was lodged with the Pakistani envoy, and that the incident was a violation of the 1991 agreement.

The exact sequence of events leading to the collision remains unclear, with both sides likely to examine the incident through their respective channels. While the Indian government has issued a formal protest, no official response from Pakistan has been provided in the available sources. The incident highlights the ongoing tensions between the two nations, particularly in the context of maritime security and the need for adherence to bilateral agreements. Further details are expected as both sides continue their investigations.