Gießen (dpa / lhe) – The police in Gießen are looking for witnesses to a suspected racist incident in a bus. An unknown person is said to have physically attacked a 14-year-old student there on Tuesday and racially insulted him, officials said on Friday. The incident became known to them through a post on social media. The black teenager got on the bus at a school and was then approached by a younger man. Police also asked the victim or the author of the post to come forward.