Lewis has been missing since Friday evening (Image: Herts police)
Officers are growing increasingly concerned for the welfare of a teenage boy from Hatfield.
Lewis, 16, was last seen on Friday evening (August 16) in the town.
He is described as being of slim build with brown hair, last seen wearing a black clothing and trainers.
He may have travelled to Harlow.
If you have seen Lewis since he was reported missing or have information about where he has been, report information online at herts.police.uk/report, via online web chat at herts.police.uk/contact or call the non-emergency number 101, quoting ISR 813 of 16 August, 2024.
If you believe you are with Lewis now or have seen him in the last few moments, please call 999 immediately.