Three people have been killed and at least five seriously injured in a knife attack at the 650th anniversary celebrations of the city of Solingen in western Germany, according to the police. The attacker is still on the run, a police spokeswoman in Dusseldorf said shortly after midnight. Police sources said that the case was no longer classified as a rampage, but as an attack. Armed officers are currently at the scene and have cordoned off large areas of the city and set up privacy screens. A man started stabbing people indiscriminately at around 9:45 pm (1945 GMT) on Friday according to a rep…