A leading candidate to be mayor of the German city of Cologne was wounded in a knife attack as she campaigned Saturday by a man who claimed that he was motivated by anti-foreigner sentiment, authorities said. Henriette Reker was stabbed in the neck at a campaign stand set up by Chancellor Angela Merkel's Christian Democrats at a market before an election Sunday. She suffered serious injuries but her condition was stable, AP quoted police chief Wolfgang Albers as saying. Another woman was seriously wounded and three people had minor injuries from the attack, senior police investigator Norbert Wagner told reporters.