Germany: many injured in a knife attack in Oberhausen

Many people were injured when a man attacked with a knife in the West German city of Oberhausen.According to the first data of the investigation provided by a source close to the local police, the author, whose motives remain unknown, was also injured while trying to escape. He has been arrested and is being treated under escort. A police spokesman in the nearby city of Essen said all five injured, including the assailant, were being treated in a hospital and at least one was in critical condition.The RTL radio station the victims belong to wider family environment of the offender, while Der Spiegel reported that, according to police, the case has a family background.