San Francisco (CNN) -- San Francisco firefighters were battling a three-alarm blaze Wednesday at a downtown waterfront pier that's slated to host events for the America's Cup yacht race. So far, no injuries have been reported.
About 75 firefighters were fighting the blaze at the Pier 29 warehouse building, San Francisco Fire Department Capt. Jeanne Seyler told CNN.
The cause of the blaze, about a mile from the popular tourist site of Fisherman's Wharf, was not immediately known, Seyler said.
The pier is one of two on San Francisco's Embarcadero set to house the America's Cup Village for the 2013 yacht race.
The facade and decorative archway at the front of the pier appear to have extensive damage.
CNN's Deanna Proeller and Augie Martin contributed to this report.