Police have made a direct appeal to a 15-year-old boy who has been missing for more than two weeks to get in touch.
Ellis Clegg, who has links to Manchester, was reported missing from his home in Runcorn on October 13.
He was seen boarding a bus in the town at about 1.50pm on October 23, which took him to Warrington bus station.
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Police have released a CCTV image of him on the bus, and have appealed for anyone who may have seen him to come forward.
Chief Inspector Leeroy Moss, from Runcorn Local Policing Unit, said: "Officers have been doing all they can to find Ellis since he was reported as missing.
"It has now been 16 days and we are becoming increasingly concerned for his welfare.
"We know from the CCTV image that he got on a bus in Runcorn that took him to Warrington.
"I would urge anyone who thinks that they may have seen him on the bus or since Friday 22 October to please come forward.

"I also want to encourage residents to keep checking their CCTV or dashcam footage which might show Ellis and to contact officers.
"Ellis is from Runcorn and at the moment we believe he is likely to still be in the town though he does have links to the Liverpool and Manchester areas.
"If you or anyone you know has any information or footage that may help us find Ellis, please do get in touch. We are very worried about him.
"I would also like to appeal directly to Ellis to get in touch and let us know that you are safe and well.”
Anyone with information is asked to call Cheshire Police on 101 quoting IML 1108035.