LOS ANGELES COUNTY, CA — A young mother died over the weekend after she was swept away by the San Gabriel River, according to first responders.

Members of the San Dimas Mountain Rescue Team were meeting with hikers about water safety around 8 a.m. Sunday at the Bridge to Nowhere trailhead in the East Fork of the river, when a person ran up the trail, yelling for help, the rescue team said in a Facebook post.

“A young mother had fallen in at the second river crossing and was swept away by the raging current,” the post said. “After a grueling search, the victim was located. Sadly, she was deceased, and the effort turned to a recovery operation.”

Agencies, including the Los Angeles County fire and sheriff’s departments, assisted in the search.

“This is a devastating reminder of how dangerous the East Fork and Bridge to Nowhere Trail can be right now, especially with swift, high water from recent conditions,” the rescue team said on Facebook. “Multiple crossings are required, and even experienced hikers can be caught off guard.

“PLEASE—stay off the East Fork and Bridge to Nowhere Trail until water levels drop significantly and conditions are safer. Turn around if the water looks too fast or deep.”