Police in Berlin have released a photograph of "Forest Boy" in hopes of identifying the teenager who showed up at City Hall last fall claiming that he had lived for five years in the woods until his father died.

The boy, who says he only knows his first name, which is "Ray," and his date of birth, June 29, 1994, speaks English and some German.

The Berlin police website, which has posted his photograph, says police have "great doubts" about the boy's story but are stumped.

"We have checked his DNA against all missing person reports, sent the data to Interpol so that they could check it internationally, but unfortunately without any success," the police said in a statement. "That's why the Youth Office has now decided to publish a photo of 'Ray' and ask for your help."

"Ray" says he and his father frequently lived in the wild, navigating with maps and a compass while living in tents or caves. He says his father died in August 2011, and that he buried him in the forest beneath some stones.

He has been unable or unwilling to identify the country or area where he had been living.

When he showed up at City Hall, "Ray" was carrying a tent for two people, a Finnish-brand backpack described as "like new," and was wearing a gold-colored neckace with the pendant "D."

At one point, police say, he said that his mother, named "Doreen," died in a car accident when he was 12.

Since September, "Ray" has been assigned a guardian and is staying in assisted living quarters.

Here is a police description of "Ray":