An oil slick more than three kilometers wide was spotted by Californian authorities off the coast of Huntington Beach, south of Los Angeles. The slick was first spotted Thursday evening, the coast guard explained in a statement at midday.

For the moment “no source has been identified” to establish the origin of this leak. The region had already suffered an oil spill in 2021 due to the rupture of an underwater oil pipeline, which spilled tens of thousands of liters of crude oil into the ocean.