(CNN)A ruptured pipeline spilled gallons of crude oil near a beach in California, creating a dark sheen that stretched for miles.
Live blog: 9-mile oil slick spreading off California coast
The 24-inch pipeline ruptured along the Santa Barbara coast Tuesday, leaking the oil near Refugio State Beach, a protected state park, according to Capt. Jennifer Williams of the U.S. Coast Guard.
Houston-based Plains All American Pipeline, which owns it, said it shut down the flow of oil in the pipeline and is conducting an emergency response.
Here's a look at Wednesday's developments: