Internationally recognised distress signals

This page describes some of internationally recognised signals that indicate distress and a vessel in need of assistance.

Use of these signals except for the purpose of indicating distress is prohibited.

Description Signal
Rockets or shells, throwing red stars fired one at a time at short intervals.  Rocket shell
A smoke signal giving off orange-coloured smoke  Orange coloured smoke signal
Slowly and repeatedly raising and lowering arms outstretched to each side.  Raising and lowering arms

A rectangle of the internationally accepted colour orange material with a black letter V

A black square and circle

 orange material with a black letter V

A square flag having above or below it a ball or anything resembling a ball.

 Square flag and ball symbols

The international Code Signal of Distress indicated by NC.

 Code Signal of Distress

A rocket parachute flare or a hand-held flare showing a red light.

 Parachute flare

A signal made by any light or sound signalling method consisting of the group in the Morse Code - SOS.

A signal sent by radio consisting of the spoken word "mayday"

 More code

EPIRB (emergency position indicating radio beacon)