COPS searching for a "vulnerable" missing woman say she may have been spotted on a bus in Renfrewshire.

Siobhan Malley was last seen at around 5pm on Tuesday in the Paisley area.

Police are growing increasingly concerned for her whereabouts and have released a number of appeals for information.

They now say she was seen in Grahamston Road on the day of her disappearance and there was a possible sighting of her on a bus in Paisley town centre at around 11.30am on Wednesday.

She is described as between 5ft 5ins and 5ft 6ins tall, of medium build with short brown hair and blue eyes.

READ MORE: Concern grows for 'vulnerable' woman last seen on Tuesday

She was last seen wearing a salmon pink top, black jeans with glitter piping on the side and a black jacket. However, she may have changed her clothing since.

A Police Scotland spokesperson said: “We are very concerned for Siobhan's wellbeing and safety. She is a vulnerable woman who we urgently need to locate, especially given the current inclement weather conditions."

Sergeant Jackie Melvin added: “Siobhan has now been missing for several days and concerns are growing for her well-being.

“I would urge anyone who may have seen her to get in touch. Likewise, if Siobhan sees this appeal please call the police or your family."

Anyone with information is asked to call 101.

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