Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. 3 Seriously Wounded in Vienna Knife Attack by VOA News Three people were "seriously" injured Wednesday afternoon in a knife attack in Vienna, Austrian police said. The stabbings occurred in the Leopoldstadt district near Vienna's famous Prater Park. The attacker fled the scene and a manhunt is underway. "According to eyewitnesses a man has attacked three persons -- a man, his wife and their adult daughter," police spokesman Patrick Maierhofer told The Associated Press. "The three persons suffered heavy to life-threatening injuries and are currently in a hospital." A fourth person also was attacked nearby and police say they are trying to find out if the two incidents are linked.