Eighteen injured in Hamburg knife attack as woman arrested1 day ago Share Save Sofia Ferreira Santos BBC News Share SaveWatch: Police said a 39-year-old woman was detained at the sceneEighteen people were injured in a knife attack at the main railway station in the German city of Hamburg on Friday evening, police said. Officers arrested a 39-year-old German woman at the scene of the attack, which took place at about 18:00 local time (16:00 GMT) on Friday. Police said there was "very concrete evidence" of mental illness in the suspect, and no evidence the attack was politically motivated. Seven people were slightly injured, seven seriously injured, and four critically injured, police said. The critically injured - a 24-year-old female, 24-year-old male, 52-year-old female, and an 85-year-old female - were stable as of Saturday.