The missing schoolgirl, Tia Sharp. Pic: Met Police

Police and family members of missing 12-year-old, Tia Sharp, have renewed their plea for information that may help find her.

David Sharp, Tia’s uncle gave a message to Tia: “Please come home. You are not in trouble – please call us or call the police. I would like to thank the police and the public – everyone is doing everything they can. Please don’t stop.”

Detective Chief Inspector Nick Scola release CCTV footage of Tia from 2 August, the day before she was last seen. In the footage she is shown wearing the same shirt and trousers as she was wearing when she was last seen.

CCTV image of Tia's outfit. Pic: Met Police

Tia Sharp was last seen in New Addington, Croydon on Friday afternoon. The young girl left her grandmother’s home around noon, saying she was going to Whitgift Centre in Croydon town centre.

She is described as white, of slim build, 4ft 5 in tall and wearing glasses and was not carrying her oyster card or mobile phone at the time of her disappearance.

It is out of character for Tia to go missing and there are serious concerns for her welfare.

DCI Scola said that police had some reported sightings: “We have had a good response to our appeals. We have had some 55 reported sightings of Tia, although none of these have been substantiated. Searches are continuing at Tia’s grandmother’s address, CCTV is being collated and viewing continues.”

Public response to the young girls’ disappearance has been extensive, local residents took to the streets to help search for the girl on Saturday evening, with around 200 people showing their support for her family.

A twitter campaign, begun by friends and family of the girl, has received support from Stephen Fry, Gary Lineker, EL James and thousands more as they retweeted appeals for information

Celebrities including Lisa Mafia and local organisations like the Crystal Palace Football Club, have joined the campaign to find the girl, tweeting  details of the search.

A Facebook group has been set up and has over 9,000 members, many of whom are helping with the search and offering support. They have distributed over 45,000 posters and fliers of the missing girl.

Anyone who has seen Tia or knows of her whereabouts should call Merton Police on 101 (quoting reference 12MIS025216); or Missing People on 116 000.