Girls Aloud star Sarah Harding has reportedly moved back in with her mother as she aims to beat breast cancer.

The 38-year-old revealed in August that she had been diagnosed with breast cancer earlier in the year and that it had tragically begun to spread to other parts of her body.

According to The Sun, Harding is "seriously ill" but is undergoing "intensive" treatment including chemotherapy while being cared for by mother Marie.

"Sarah has been supported by her friends and family throughout everything but her mum Marie has been her absolute rock," a source told the newspaper.

"After learning she had cancer Sarah moved back to Marie's home in Manchester so she could start treatment with her mum caring for her.

"Sarah is undergoing intensive treatment and is holding up well.

"Being with her mum is the best place for her."

Harding has been absent from all social media since announcing her diagnosis in the summer.