UPDATE: Police have now found Harley and he is safe and well.
Police have renewed their appeal to find a 17-year-old missing from his home near Boston.
Harley Fox was first reported missing from his home in Old Leake on Wednesday morning.
He was last seen on his pushbike at 7.45am, and police are growing more and more concerned for his wellbeing.
New information given suggests that Harley, who regularly uses trains to travel, may have left the county to go to the Birmingham area.
The purple hoodie he is wearing in the new picture is the one he wore on the day he was last seen.
Officers are urging people to call 101 and quote incident reference 101 of August 5 if they can help find Harley.