A fire was extinguished last night at a Danbury deli.  Fire crews responded to the Tropical Deli on Lake Avenue for the report of smoke coming from the building roof.  Firefighters located the blaze after opening up a section of the wall and roof eves. No one was injured at this incident.  The Department of Health & Human Services and building departments were requested to the scene. The fire marshals division was on scene and is investigating the cause, which is undetermined at this time.