Police said the woman was attacked while jogging along a canal towpath close to the centre of Leeds
A 25-year-old man has been arrested over a sexual assault on a woman who was out jogging on a canal towpath.
The 39-year-old victim was attacked then held round the neck until she became unconscious.
It happened as the woman was running on the Leeds-Liverpool canal near Viaduct Road in Leeds at about 06:00 BST last Wednesday.
Police said a 16-year-old boy arrested on Sunday night had been released without charge.
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