Police searching for a missing boy last seen leaping from a ferry believe he may have jumped into the icy waters over a £100 bet.
Jordan Cobb, 16, was intending to take part in a New Year's Eve street party in Torpoint, Cornwall, after catching the ferry from Plymouth in Devon.
But the alarm was raised shortly after 9pm when Jordan disappeared beneath the surface of the River Tamar, around 70 yards from the shore.
Police say they are still trying to track a handful of people who are believed to have been with Jordan in the moments leading up to his disappearance.
They have been scanning social media and speaking to other witnesses, and say they believe the incident may be a "prank gone wrong".