Update: Missing Dublin teen found safe and well

Update Saturday, February 15: Ryan McGuinness has been found safe and well.

Update Sunday, February 9: Gardai are seeking help in tracing a missing teenage boy in North County Dublin.

15-year-old Ryan McGuinness is missing from the Naul since Thursday and is known to visit the Ballyfermot and inner-city areas.

He's 5 foot 8" tall, with brown hair and blue eyes - he was wearing black tracksuit bottoms, a black sweater with navy design down the arms, a black baseball cap and a black Nike jacket.

Anyone with information on his whereabouts is asked to contact gardaí in Balbriggan on [phone] or the Garda Confidential Line 1800 666 111.