NEW ORLEANS, Louisiana, (AFP) - Six people were shot at the New Orleans' Mardi Gras festival, casting a shadow on the annual festivities in a city still recovering from the ravages of the 2005 Hurricane Katrina. Authorities said the shooting took place on "Fat Tuesday" - the most festive day of the 12-day Carnival season - on the St Charles Avenue parade route shortly before 2 pm (2000 GMT). The victims included a one-year-old boy. None of the injuries appeared fatal and police quickly arrested two men after a brief chase, recovering three guns. The shooting came immediately after the parade of Rex - the titular "King of Carnival" - and was enough to shock even the most hardened residents. "This is a family neighbourhood," city council member Stacy Head angrily told a television reporter. New Orleans is still struggling to recover from the effects of Katrina, which flooded about 80 percent of the city when it struck in August 2005. The hurricane killed some 1,460 people across the state of Louisiana, the bulk of them in New Orleans, and forced most city residents to flee. Many chose never to return.