Police are re-appealing for information to find Kevin Nketia, 15, who is missing from Grays.
Kevin has been missing since May 1 and police officers have carried out a number of enquiries to locate him without success.
Officers are concerned for his welfare and believe he may be travelling by train.
Police have received possible sightings of him in Stevenage and officers are working closely with Hertfordshire Police.
He also has links to Bedfordshire and Luton.
He is described as being 5ft 7ins with braided hair and was he last seen wearing a black parka jacket with a fur collar, blue Adidas tracksuit, and black Nike Airmax 95s trainers.
Anyone who has seen him or has any information about where he is should call police on 101 or Crimestoppers anonymously on 0800 555 111.
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