HUNTINGTON BEACH, Calif. (AP) — Crews on the water and on shore worked feverishly Sunday to limit environmental damage from one of the largest oil spills in recent California history, caused by a suspected leak in an underwater pipeline that fouled the sands of famed Huntington Beach and could keep the beaches there closed for weeks or longer.

Booms were deployed on the ocean surface to try to contain the oil while divers sought to determine where and why the leak occurred. On land, there was a race to find animals harmed by the oil and to keep the spill from harming any more sensitive marshland.

An estimated 126,000 gallons of heavy crude leaked into the waters off Orange County starting late Friday or early Saturday, when boaters began reporting a sheen in the water, officials said. The pipeline and operations at three off-shore platforms owned by Houston-based Amplify Energy Corp. were shut down Saturday night, CEO Martyn Willsher said.

He said the 17.5-mile pipeline that is 80 to 100 feet below the surface was suctioned out so no more oil would spill as the location of the leak was being investigated.

Huntington Beach Mayor Kim Carr said the beaches of the community nicknamed “Surf City” could remain closed for weeks or even months. The oil created a miles-wide sheen in the ocean and washed ashore in sticky, black globules.

“In a year that has been filled with incredibly challenging issues, this oil spill constitutes one of the most devastating situations that our community has dealt with in decades,” Carr said. “We are doing everything in our power to protect the health and safety of our residents, our visitors and our natural habitats.”

Some birds and fish were caught in the muck and died, Orange County Supervisor Katrina Foley said. But by early afternoon Saturday the U.S. Coast Guard said there so far was just one ruddy duck that was covered in oil and receiving veterinary care. “Other reports of oiled wildlife are being investigated,” the Coast Guard said in a statement.

Crews led by the Coast Guard-deployed skimmers laid some 3,700 feet of floating barriers known as booms to try to stop more oil from seeping into areas including Talbert Marsh, a 25-acre wetland officials said.

A petroleum stench permeated the air throughout the area.

“You get the taste in the mouth just from the vapors in the air,” Foley said.

The oil will likely continue to wash up on the shore for several days and affect Newport Beach and other nearby communities, officials said.

The closure included all of Huntington Beach, from the city’s north edge about 6 miles south to the Santa Ana River jetty. The shutdown came amid summerlike weather that would have brought big crowds to the wide strand for volleyball, swimming and surfing. Yellow caution tape was strung between lifeguard towers to keep people away.

Officials canceled the final day of the annual Pacific Air Show that typically draws tens of thousands of spectators to the city of about 200,000 residents south of Los Angeles. The show featured flyovers by the U.S. Navy Blue Angels and the U.S. Air Force Thunderbirds.

The leaking pipeline connects to an oil production platform named Elly, which in turn is connected by a walkway to a drilling platform named Ellen. Those two platforms and another nearby platform are in federal waters.

Elly began operating in 1980 in an area called the Beta Field. Oil pulled from beneath the ocean and processed by Elly is taken by the pipeline to Long Beach.