Police have stepped up their appeal to locate a missing 15-year-old who “has strong links to Oxford”.

The teenager, named Levi, from Slough, was last seen on February 17 and is still missing.

His surname has not been disclosed by police.

In statement released today (Thursday, February 29) Thames Valley Police said: “We are still looking for missing boy, Levi, aged 15.

“Please help share our appeal to find him. Levi was last seen on February 17. He is missing from Slough area, but also has strong links to Oxford.

“We are growing increasingly concerned for Levi, so if you see him or know of his whereabouts please contact Thames Valley Police quoting the reference 43240076872.”

Police also confirmed on February 21 he "was last seen wearing a tracksuit, grey puffer jacket with paint splash design and grey Nike trainers" and is believed "to be carrying a purple canvas bag that says 'SIGNATURE' in white".