Context
• A U.S. submarine sank Iran’s frigate IRIS Dena near Sri Lanka.
• Sri Lanka responded to the vessel’s distress signal according to international maritime obligations related to search and rescue operations.
Distress Call at Sea
• A distress call indicates grave and imminent danger and requires immediate assistance.
• Standard distress signals include:
• MAYDAY (voice communication)
• Digital Selective Calling (DSC) alert
• All nearby ships and coastal authorities are obligated to respond.
• Distress communication receives absolute priority over all other maritime communications.
Convention in News
International Convention on Maritime Search and Rescue (SAR), 1979
• Adopted under the International Maritime Organization (IMO).
• Establishes a global framework for maritime search and rescue operations.
• Divides oceans into Search and Rescue Regions (SRRs) where specific countries coordinate rescue operations.
• Ensures assistance is provided to persons in distress at sea regardless of nationality or circumstances.




