After a distress alert, maritime search and rescue (SAR) is a coordinated process—not a single rescue vessel racing toward a point. Rescue authorities assess available information, identify suitable resources and organise a response across defined search-and-rescue regions.
From alert to coordination
A distress alert may reach a rescue coordination centre through radio, satellite-supported systems, a beacon, another vessel or another authority. Coordinators seek to confirm key facts and build a reliable operational picture.
Useful information can include:
- vessel identity and position;
- nature of distress and assistance required;
- number of people involved;
- injuries or immediate hazards;
- communications available;
- weather, sea state and vessel condition.
Accuracy matters. Give updates through trained channels and avoid speculation.
How help is organised
The rescue coordination centre may involve nearby merchant ships, rescue vessels, aircraft, coast stations and neighbouring authorities. Geography, conditions, capability and urgency shape the plan. A shipmaster receiving a distress message may have duties relating to assistance, subject to the applicable circumstances and safety of their own ship.
SAR regions allocate coordination responsibility; they are not political borders that prevent cooperation. Maritime rescue often depends on services working across boundaries.
What crew should do
Follow the master, alarm instructions, muster list and vessel emergency procedures. Prepare equipment or information only as directed. Maintain communications discipline and preserve the accuracy of passenger or crew counts.
Do not publish live operational details or casualty information on social media. Unverified messages can distress families, breach privacy and complicate response.
If your vessel is assisting
Your own master will assess the situation and direct preparations. Crew may be assigned lookout, communication, recovery, medical or accommodation duties. Use the vessel’s plans and trained methods. Do not improvise a recovery technique from an online summary.
After rescue
Recovery is not the end of the incident. Survivors may need urgent medical assessment, warmth, food, communication assistance and trauma-informed support. Identities and personal details should be protected. Crew involved in a difficult rescue may also benefit from debriefing and wellbeing support.
Authoritative references
OFFICIAL REFERENCES
Verify at the source
- View official guidance ↗www.imo.org
- View official guidance ↗www.imo.org
This guide provides general educational information. Requirements and remedies depend on the vessel, flag, contract, collective agreement and circumstances. Seek qualified help for your case.

