A middle-aged woman was taken to hospital after being found with her hands bound near a Leeds church.
Police are trying to establish whether the attack on her near St Mary's Church, Whitkirk, Leeds, was of a sexual nature.
The alarm was raised after a passing driver saw the woman in a distressed condition at 5am on Tuesday morning near to the church community centre.
Officers arrived and found a 49-year-old woman with her hands bound.
She was released and taken to Leeds Infirmary where yesterday she was still detained.
Anyone who witnessed anything unusual in the area is urged to contact Stainbeck CID on 0845 6060606.
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