A popular cut through was taped off in Westhoughton with police on the scene.
A ward councillor believes that an assault took place in the area.
Crime scene investigators were also called to the scene yesterday (Saturday) morning which links Cricketers Way and Southfield Drive in Westhoughton.
Cllr David Wilkinson says he spoke to police on the scene and believes any injuries sustained are not thought to be serious.
He said: "The information at the moment is it was some form of physical assault.
"I have asked police if they can provide any further information where possible so members of the public can be reassured.
"It is a footpath that runs from Southfield Drive to Cricketers Way. It is used by a lot of people because it connects to the town centre. At night people will use it, and I use it myself.
"I saw it at around 10am today, CSI were on scene and there were at least three non-uniform officers there."
Cllr Wilkinson is unsure as to what time the suspected assault took place but says he is hoping for more information from the police.
He added: "These kinds of assault are very rare in Westhoughton, it is a relatively safe town. But it is extremely worrying, particularly for a female resident as to what could happen."
"It is unpleasant to say the least, obviously it is very distressing for the victim. Being attacked can linger in a person's mind for a long time.
"I hope the person recovers and it has no lasting effect, mentally or physically."
Greater Manchester Police have been contacted for further information.
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