Police are appealing for help to find missing Bransholme teenager Kieran Mason.
The 14-year-old disappeared after leaving his home on Tuesday evening and no one had heard from him since.
His whereabouts remains unknown and there have been no sightings since he went missing.
He is described as "vulnerable" and Humberside Police are growing concerned for his wlefare.
In a tweet, the force said: "Have you seen 14-year-old Kieran Mason? He hasn't been seen since leaving home on Bransholme yesterday evening.
"He is vulnerable and his whereabouts unknown.
"He is 5'8" tall, brown hair, black puffa coat with fur hood, black joggers and puma trainers."
Anyone who has seen Kieran or has any information about his whereabouts such contact Humberside Police on 101 quoting the log number 586 of Tuesday, February 4.