as shared an urgent appeal with her followers to help find her missing niece Faith, after she disappeared in High Wycombe.
Leigh-Anne, 32, said Faith, 13, had vanished without a phone or any money on her.
Taking to social media on Monday evening, the singer shared photos of Faith, 13, alongside a message which read: ‘Please share. My niece Faith is missing.
‘She was last seen wearing a black crop top, black leggings with a Jordan backpack in High Wycombe town centre.
‘Please share, we are extremely worried, she has no phone or money.
‘Police have been informed but we are yet to find her.’
Alongside a selfie of Faith wearing clear-rimmed glasses and a red streak in her hair, Leigh-Anne also shared a recent picture of what the teenager was wearing when she was last seen.
Leigh-Anne has two sisters – Sairah and Sian-Louise – who she remains close with.
Faith is Sian-Louises’ daughter, and she also shared the same plea for help that Leigh-Anne did.
Additionally Sian-Louise shared a post by Instagram account The Black Project, which showed Faith under a ‘missing person’ banner, and wrote: ‘Faith, age 13, has not been seen or heard from for several hours now, having last been seen in the town centre of High Wycombe earlier today.
‘She has no phone with her, and no money either, so it’s not clear if or how she’d have left the High Wycombe area, but with no way of contacting her, her family are incredibly worried. Police have been informed but as yet haven’t found her.
‘Wherever you are, please share this – particularly if you are in the Buckinghamshire/London/Bedfordshire area.’
Faith was last contacted on the afternoon of July 22.
The Black Magic hitmaker grew up in High Wycombe and joined Little Mix when she was put together with Jesy Nelson, Jade Thirlwall and Perrie Edwards in 2011 on the X Factor.
They became the first group to win the series, having been mentored by N-Dubz star Tulisa.
Metro.co.uk has contacted Thames Valley Police for comment.