DULUTH — One person is displaced after a fire led to severe water damage at a downtown apartment building Wednesday morning. The Duluth Fire Department responded to an 8 a.m. call of a fire on the 300 block of West First Street, the city reported in a news release. Firefighters arrived to find a fire inside a third-floor apartment had been extinguished by the building's sprinkler system. "Tenants and their pets were evacuated during the incident…