A mysterious man remains in a coma after being found unconscious in North London for three days.
The tattooed man is still in critical condition at the hospital after being discovered on Friday morning in Finchley without a passport.
Officers believe he fell over and hit his head and said, "Attempts to identify him are exhausted."
He was found in blue jeans, a black hoodie top and gray Nike canvas shoes and has some change, keys and a small metal necklace.
He has a large scar that runs vertically from his navel to his chest, which is believed to be an operation scar from possible heart surgery.
The man also has numerous tattoos, including a very distinctive design that sticks his left arm up to his chest, with skulls and a face.