Harvey was last seen in Luton on Friday (June 10).
The 17-year-old is described at slim, with brown hair and wearing a black varsity jacket and Louis Vuitton cross body bag.
Police have issued a picture of the missing teenager in the hope that someone recognises him and gets in touch.
He also has links to Houghton Regis and Bedford.
If you have any info call 101 or https://orlo.uk/1UAJ3, ref MPL/1172/22.