Continuing an over three-decade practice, India and Pakistan on Thursday exchanged a list of their nuclear installations under a bilateral pact that prohibits the two sides from attacking each other’s atomic facilities. The exchange of the list came even as the ties between the two countries remain under deep freeze following four-day military hostilities last May.

The list exchange took place under the provisions of an agreement on the prohibition of attack against nuclear installations and facilities, the Ministry of External Affairs (MEA) said. It was done simultaneously through diplomatic channels in New Delhi and Islamabad.