Greater Manchester Police (GMP) have released CCTV footage of the last known sighting of 13-year-old Lillia, who has been missing from Bolton since September 11. The footage shows her at Manchester Piccadilly bus station at 10:36 BST on Monday, September 14.
Officers said that further inquiries identified this sighting after Lillia was previously seen boarding the number 36 bus from Salford earlier that morning. The bus service travels from Bolton through Salford and into Manchester city centre.
Chief Superintendent Helen Critchley confirmed that officers are making every effort to locate Lillia, working through CCTV footage and exploring all avenues. She urged anyone with information regarding Lillia's whereabouts or movements from the bus, or who was on the number 36 bus at the time, to contact police.
Police are also keen to hear from anyone who may have been in Piccadilly Gardens on Sunday, September 13, around 8:20pm, or saw her in McDonald's at that time. Lillia is described as white, slim, about 5ft 5in (1.65m) tall, with light brown hair and glasses.
The investigation currently covers the whole of Greater Manchester, but police are keeping an open mind that Lillia could have travelled outside the area. Her family is appealing for her safe return.