It’s a headline no one would want to see: Fire hydrants being used to fight the Palisades Fire were running dry. The fast-moving fire tested the L.A. Department of Water and Power’s municipal system: The final tank used to maintain water pressure in the area ran dry by 3 a.m. Wednesday, according to officials.

Officials urged DWP customers to conserve water throughout the city, “because the fire department needs the water.”

Three large water tanks in the Pacific Palisades area ran out by early Wednesday morning, officials said, reducing water pressure for fire hydrants at higher elevations.