German police on Saturday said they detained one person as they hunted for a man who stabbed three people to death and wounded eight others at a street festival in the city of Solingen.The knifeman went on a rampage in the western town of Solingen late on Friday, as thousands had gathered for the first night of a “Festival of Diversity,” part of a series of events to mark the town’s 650th anniversary.On Saturday, police in the city Duesseldorf, which lies just west of Solingen, announced they had detained a person as part of their investigation and were verifying whether they had “a connection with the crime.”For all the latest headlines follow our Google News channel online or via the app.Five of the wounded were in a “serious” condition, with a prosecutor saying a terror attack motive was “not excluded.”Solingen’s center was closed off after Friday’s attack, as special forces and other security personnel swarmed the city center and a helicopter flew overhead, according to an AFP