AN EXTENSIVE search was launched on New Year's Eve after a 16-year-old jumped from the Torpoint ferry into the bitterly cold River Tamar.
As the Cornish Guardian went to press, Jordan Cobb from Plymouth had not been found.
Detective Inspector Nick West, leading the search, said police, the RNLI and the coastguard were still looking for Jordan.
"It's a tragic incident for the family. We're supporting them as best we can.
"We're keeping an open mind and hoping he's managed to get to shore," he said.
Jordan was seen to leap from the ferry as it neared the Cornish side of the river at around 9.15pm.
A coastguard spokesman said it was thought he had been involved in "high jinks" with friends, celebrating the final hours of 2012.
The river was bitterly cold at this time of year and there would have been a current of about 4 knots, about 4.5mph, on the Torpoint side, heading towards sea, as the tide was going out.
About 30 to 40 members of the public turned up on the Tamar Bridge to help with the search effort on Wednesday morning.
Mr West urged people to take care if conducting searches along the river and to be aware of the tides.
Anyone with any information is being asked to call the police on 101.
More than 5,000 people have liked a Facebook page set up to share information about Jordan.
At Stoke Damerel Community College, where he was in Year 11, staff and governors said their thoughts were with his distraught family.
Principal Carol Hannaford said: "Jordan is a popular member of Year 11 and has been a source of strength for his younger brother, who also attends the school."
The Reverend Gordon Cryer, a governor at the school and former rector of Stoke Damerel, said: "We're very prayerful for the family.
"It's very sad, particularly at this time of year and when someone so young has been lost."