Divers and a helicopter searched the water near the Santa Monica Pier Sunday evening for a woman reported clinging to pilings.
A passerby informed lifeguards about 8:45 p.m. about a woman in the water, Los Angeles County Fire Department Dispatch Supervisor Michael Pittman told City News Service.
As of about 10:30 p.m., six divers from the Los Angeles County Lifeguards and Harbor Patrol and a helicopter searching from the air were unable to find her, Pittman said.
Discussions were underway about whether to scale back the search, he said.
The U.S. Coast Guard tweeted about 10:30 p.m. that anyone with information was urged to call 310-521-3815.