No injuries were reported late Thursday morning after a female barricaded herself inside a downtown apartment and set a recliner chair on fire. The incident occurred in a fourth floor apartment at 1607 Main St., shortly before 11:45 a.m., Dennis Leger, aide to Commissioner Bernard J. Calvi, said. The female barricaded the door with a table, chair and other items, Leger said. The fire, which did not spread beyond the chair, was extinguished by the apartment’s sprinkler system before firefighters arrived. The female was taken to Baystate Medical Center. The apartment sustained water damage from the sprinkler, Leger said.