Berlin [Germany], August 31 (ANI): On Friday evening, a violent incident occurred on a bus in Siegen, North Rhine-Westphalia, Germany, leaving five people injured after a woman attacked them with a knife, local police confirmed, Xinhua reported. Notably, the woman has been arrested. The police informed that three persons were in life-threatening conditions. At least 40 other passengers were on the bus at the time of the incident. No further danger is posed, police said, according to Xinhua. According to German newspaper Bild, the attacker is believed to be a German national, with indications s…