Police have again appealed for help in finding a missing 15-year-old.Trenton Williams was reported missing last week and was most recently spotted on Wednesday.The teenager is described as a 6ft 2in white male, of slim build with blonde hair.When last seen he was wearing a white T-shirt, football shorts and white socks.A Police spokesman said: “He is known to frequent the Parsons Road, Deepdale and Curving Avenue areas of Pembroke. Anyone with any information on the whereabouts of 15-year-old Trenton Williams is encouraged to contact the Vulnerable Persons Unit on 247-1678 or the main police number 295-0011 at the earliest opportunity.”