The suspect in the Madeleine McCann case is being investigated over a separate child sex allegation a month before she vanished in Portugal.
The German drifter known as Christian B is suspected of exposing himself and performing a sex act in front of a young girl on a beach in 2007.
German prosecutor Hans-Christian Wolters, who is investigating Christian B in the Madeleine case, revealed his new investigation to Sky News.
Sky News
