EXCLUSIVE  

Detectives are investigating religious-themed TikToks a mother accused of slashing her daughter's throat posted the same day she allegedly killed her.

Yingying Xu,46,allegedly murdered her daughter Sophie Wang,10,at their Emerald Lakes home,in Carrara,on the Gold Coast,on Tuesday.

Sophie's father,Yun Wang,a science professor at Griffith University,arrived home to find his daughter and called triple 0,but despite the best efforts of paramedics,she could not be saved.

Xu,was arrested in a nearby street more than four hours later - at 10.25pm - and has since been charged with murder.

Earlier on Tuesday,Xu posted three videos on TikTok showing her muttering in Chinese about religion.

In the clips,Xu talks about Christianity and how the 'trinity' is the 'only true god' and 'Jesus is the incarnate son of man'.

The videos will form part of the investigation into the case, which seasoned detectives have describe as one of the 'most confronting' they have ever seen.

The Year 5 student's death has rocked the tight-knit local community,including her school Emmanuel College,and which is located just 600 metres from her home.

Classmate Oliver described Sophie as kind and smart 

'We are devastated by this incident and know it will profoundly impact our school community.

'Our prayers go out to the family and friends of the child,and we extend our deepest condolences to all those affected by this tragedy.'

Counselling and grief support services have been provided to students.

Detective Acting Inspector Kent Ellis said Queensland Police are keeping the family and the community in their thoughts during this 'tragic' and 'distressing' time. 

First responders who attended the scene are receiving counselling and support. 

'In my 15 years as a detective,it is one of the most confronting scenes I have ever seen,' Detective Acting Inspector Ellis told reporters on Wednesday.

Mr Ellis would not comment on whether Xu had a history of mental health issues. 

The 46-year-old woman was due to face Southport Magistrates Court on Wednesday morning. 

She did not appear in person and a police application to have names and details of the case suppressed was later withdrawn after it was opposed by lawyers and media. 

Xu was remanded in custody and will next appear on November 29. 

TikTok