We are treating Jordan (Cobb) as a high risk missing person and we are working with the coastguard to try and locate him.
The river was extensively searched by air and sea for several hours, but there remains a possibility that he managed to swim ashore, and I would ask anyone with information to call the police on 101.
The search for the missing teenager has resumed this morning.
More top news
Aylan Kurdi, three, and his brother Galip, five, perished with their mother as their father, who survived, desperately tried to save them.
Two nursery workers in New Jersey are accused of filming youngsters fighting and posting the footage on Snapchat.
Pope Francis slipped out of the Vatican to make a surprise visit to an optician's to get a new pair of glasses.