India-Pakistan navy ship collision sparks alarm over unintended escalation

Islamabad, Pakistan — More than 16 months after India and Pakistan fought a four-day air war, firing missiles and drones at each other, the South Asian neighbours came the closest since then to a military face-off — this time in the Arabian Sea.

Indian and Pakistani naval vessels collided on Tuesday, setting off tit-for-tat accusations. Pakistan’s government summoned India’s top diplomat in Islamabad on Wednesday, mirroring action New Delhi had taken hours earlier when it summoned Pakistan’s charge d’affaires and lodged a protest of its own over the incident.

The collision is the first direct military encounter between the nuclear-armed neighbours since their four-day conflict in May 2025, when Indian air strikes and Pakistani retaliation brought both countries closer to full-scale war than at any point in decades.

So far, details of what happened remain disputed. Neither government has released video, track data or an independent account – and each statement places the blame on the other’s vessel.

But analysts say it underscored the risks of unintended incidents in the seas that could potentially escalate into broader crises, when India and Pakistan have few military and diplomatic mechanisms left in place to defuse tensions.

According to Pakistan’s Foreign Office statement issued on Wednesday evening, the navy has been conducting its biennial SEASPARK-26 exercise inside its exclusive economic zone since September 1 .

A country’s EEZ extends 200 nautical miles (370km) from its coast. Its territorial waters are only 12 nautical miles (22km) from the coast, with the rest of the EEZ in international waters. While vessels from other countries can pass through a nation’s EEZ in international waters unencumbered, they cannot exploit the waters economically: that right belongs only to the country whose EEZ it is.

Pakistan said that an Indian vessel, identified as the guided-missile destroyer INS Kolkata, had “repeatedly” tried to enter the exercise area since September 7 .