Police are investigating an alleged assault on the section of road from Quarterbridge to Braddan Bridge.
An incident occured at about 2.45am on Sunday and officers want to speak to anybody who saw a man walking on his own towards Braddan at about that time.
They are also looking for information about a small, red hatchback type car, or its occupants, also thought to have been in the area.
Anybody who can help the investigation is asked to ring Police Headquarters on 631212, or the anonymous Crimestoppers line on 0800 555 111.
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