A fire at a new luxury tower condominium in Kakaako was extinguished today by an activated sprinkler, a Honolulu Fire Department spokesman said. Firefighters received a call at about 3:45 p.m. from a person on the 37th floor of Keauhou Place, 555 South St., about smoke coming from the floor above, said Honolulu Fire Capt. David Jenkins. Firefighters arrived to find a kitchen fire that was extinguished by an activated sprinkler. Jenkins said there was some water damage from the sprinkler, but it was “positively way better than structure fire damage.” A damage estimate and the cause of the fire were under investigation. The 43-story luxury tower with units priced from about $400,000 to $1.4 million opened to residents in late October.