A Maine man of Ethiopian descent who worked at a Walmart store claims in a lawsuit the company discriminated against him because of his race and retaliated when he complained. Abdulaziz Omar of Lisbon filed his complaint in Androscoggin County Superior Court. He alleges his supervisor at a Lewiston Walmart in 2009 treated him less favorably than workers who were not black. Omar also alleges when he went over his supervisor’s head to complain, he was ignored. He alleges when he was injured on the job, he was told not to seek medical treatment because it would cost the company money. He said he was fired in 2010 for an error he did not make. A company legal representative tells the Sun Journal, that Wal-Mart denies discriminating or retaliating against Omar.