A missing man who resurfaced after five years is unable to remember anything from that time, his sons say.
John Darwin's sons say they are shocked but happy at his return
John Darwin was presumed dead after the remains of his canoe were found washed up on a beach in Seaton Carew, near Hartlepool, Teesside, in March 2002.
The 57-year-old walked into a London police station at the weekend, saying he did not remember where he had been.
He has now been reunited with his sons, Anthony and Mark, who say he cannot remember anything since June 2000.
His wife, Anne, is believed to be living abroad after recently selling the couple's home.
Traumatic and emotional
In the statement issued through Cleveland Police, Anthony, 29, and Mark, 31, said that the news of his appearance had come as a huge shock to the whole family, but they were extremely happy.
His wife had been informed and was delighted at the news.
They added: "We have spoken with John and he appears to be in good health, however he currently has no memory of events since June 2000.
"We appreciate that there is huge media interest in this story however due to John's memory loss there is little more we can add.
"Since Saturday evening we have been through a traumatic and emotional time and this continues to be a stressful time for John and the family."
Officers will be speaking to Mr Darwin at some point, but it has not been determined when.
Anyone who has seen or had dealings with him over the past five years is asked to contact Cleveland Police.