A woman was rescued after plunging into a river following an argument early today.
And three people who dived into the River Fowey at Whitehouse Quay, Cornwall, in a bid to rescue her also had to be recovered from the water by lifeboats.
Brixham coastguard said it was alerted via a 999 call at 2.41am.
St Austell coastguard rescue team was called out, Fowey RNLI lifeboat and inshore lifeboat were launched and a rescue helicopter from RNAS Culdrose was scrambled along with police and an ambulance.
Fowey inshore lifeboat quickly arrived at the scene and the woman was recovered from the water unconscious. The three other people were also recovered by lifeboats.
After being assessed by paramedics it was decided that helicopter evacuation was not needed when the woman regained consciousness.
She was taken to Treliske hospital, in Truro, by ambulance. The three others were not taken to hospital.
Mark Satchell, watch manager for Brixham Coastguard, said: "It would appear that the woman had entered the water after some disagreement between individuals.
"Don't drink and drown.
"Not only does alcohol impair judgment but it will also affect your ability to deal with an emergency situation."