Authorities say firefighting efforts were hindered by sprinkler and hydrant failures during a blaze that destroys a medical equipment warehouse in Northern California. Multiple outlets report that firefighters responded to the fire at a large warehouse, where flames and embers reportedly spread beyond the immediate area. According to officials, the on-site sprinklers did not operate as intended and hydrants also failed to provide the needed water supply. MedPage Today and other coverage state that these equipment problems slowed suppression efforts while crews worked to bring the fire under control. The reports agree on the broad details: it was a large warehouse fire, firefighters faced operational difficulties due to non-functioning water systems, and embers were carried for miles. While the outlets vary only slightly in phrasing, they consistently attribute the response challenges to malfunctioning fire-prevention and water-delivery systems at the site. No additional causes for the fire itself are included in the provided summaries.