Firefighters are battling a second-alarm blaze at a shuttered Ruby's Diner at the end of Seal Beach pier.
The diner has been closed since 2013, and Capt. Larry Kurtz of the Orange County Fire Authority told KTLA that he wasn't sure when the building had last been inspected.
Harbor patrol boats are attacking the flames with streams from water cannons while firefighters direct streams from hoses on the pier.
Seal Beach Pier has a long and storied place in surfing history, and this isn't the first time the iconic Southern California structure's taken a blow: A huge swell lifted almost 1,200 feet of the pier's deck off in 1983.
An OCFA firefighter suffered an injured shoulder in the firefighting effort, Kurtz said.
It's unclear what started the fire, but the north side of the restaurant was in flames.
The fire was initially knocked down at 9:05 a.m., Concialdi said, but flames re-emerged around 10:45 a.m.
Four fire boats from Long Beach Fire Department, three from Los Angeles County and one from the Orange County Sheriff's Department responded to assist the battle from the ocean. The 1992 fire was caused by two fisherman using a makeshift coal-fire hibachi grill; hot coals apparently fell through cracks in the pier's wooden boardwalk and landed on a plastic gas line, which ignited.
"Do I smell something cooking?" he said he thought when he smelled the fire.
Firefighting boats surrounded the tip of the pier because the wooden structure, built in the 1900s, could not hold the weight of a fire truck, according to firefighters.
"There were chunks of wood falling into the water", Gillispie said.
But then he saw the smoke building up, and emergency crews arriving.
Rachel Kuryan, who lives nearby, walked out to see the fire with her dog and a friend.
The pier was constructed in 1906 and it is the longest one in Orange County. The pier was said to remain closed indefinitely.