Cheshire Police also said it was keeping all lines of enquiry open, including whether Brianna, who was transgender, was targeted in a hate crime.

The 16-year-old, from Birchwood in Warrington, Cheshire, was found on a pathway with serious injuries in Culcheth Linear Park at around 3pm on Saturday.

Emergency services were called but she died at the scene.

A boy and girl, both 15 years old and from the local area, have been arrested on suspicion of murder and are in police custody.

Officers have been granted an extension of 30 hours to further question the two suspects.

"All lines of enquiry are being explored, including whether this was a hate crime," a Cheshire Police spokesperson said.

"Please continue to avoid speculation online and be wary of sharing misinformation relating to this case."

It comes after Brianna's family paid tribute, describing her as a "larger-than-life character who would leave a lasting impression on all that met her".

In a statement, the family said: "Brianna was beautiful, witty, and hilarious. Brianna was strong, fearless, and one of a kind.

"The loss of her young life has left a massive hole in our family, and we know that the teachers and her friends who were involved in her life will feel the same.

"We would like to thank everyone for their kind words and support during this extremely difficult time."