A woman has appealed to the public to help locate an alleged offender who she said was responsible for her sister’s injuries.

The woman posted a montage to show what appeared to be her sister’s bloodied face and bruises to Facebook.

Kaniva News was unable to confirm the authenticity of the photos.

The woman claimed her sister’s partner had also suffered similar injuries.

She alleged the pair had sought help from the Nukunuku police on Tongatapu before they could make their own way to the hospital.

Tongan authorities could not be reached for comment.

Commenters who knew the woman on Facebook had been curious to know whether the victim was her own sister.

“Is this Mā’ata”, a commenter asked, in an attempt to identify the victim.

The woman has yet to respond to the question.

“I love you my dear sister”, she wrote in Tongan.

The woman appeared to imply that her sister and her partner were victims of a vehicle hit and run incident.

In Tongan she said of the driver: “Na’a faifai pea ke ‘alu ‘o ‘efihia ha feitu’u ‘e faka’uli ho’o me’a na’e fai”

Commenters also shared their sympathy with the woman.

“So sad, was it a hit and run”, one commenter asked.