Red over white, plus a third white light lower down and off to one side. What does the extra light tell you?
Lights seen at night, from top to bottom: red (centre), white (centre), white (right).
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She is fishing with gear stretching more than 150 metres towards that light. Red over white is a vessel fishing other than trawling. An extra all-round white light shows that her gear reaches more than 150 metres out in that direction. Pass on the other side.