Conservative French presidential candidate Francois Fillon has been doused with flour while arriving at a political meeting in the eastern city of Strasbourg.A young man wearing a T-shirt marked "Students with Fillon" was seen on BFM TV throwing flour at the candidate Thursday night as Fillon was crossing a crowd of supporters. Fillon's face, shoulders and chest were completely covered with white powder.Speaking from the meeting's platform a while later, Fillon said the incident was more evidence that he's "the target of a harassment" campaign, adding with a hint of irony: "I hope at least that the flour was French."Jerome Guedj, spokesman for Socialist candidate Benoit Haman, said he "condemns any manifestation of violence, even symbolic, in this campaign."