A Thames Valley Police spokesperson said: "Thames Valley Police is continuing its investigation to search for missing man Ben, aged 20.
Emma Picket, whose son is friends with Ben told MailOnline: "This has been really frightening and shocking and turned all the lives upside down of all the people that knew Ben.
Benedict, known as Ben, was last seen at around 1am on Sunday, January 26 in the Cripley Road area of Botley, West Oxford.
City councillor Susanna Pressel previously added: “It’s so sad to hear that Ben is still missing.
A National Police Air Service (NPAS) helicopter was seen flying over the area while drones also assisted the operation.