Fire and ambulance crews were called to Julian's Bridge in Wimborne in Dorset at around 12.30 am following reports that a man had fallen into the river.
By the time they arrived the man had been helped to the river bank by a friend. Using a spinal board ambulance crews took the man to hospital.
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Friday's GMB weather for the west of the region
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David Browning said Jillian Howell screamed “you b******”, to which he replied: “I’m sorry Jill, this is what mental health does to you.”