All trails in the Santa Monica Mountains in Malibu are closed Sunday — and through the Labor Day weekend — after a hiker’s apparent heat-related death.

It happened at 2 p.m. Saturday when the 41-year-old woman was at Tapia Park in Malibu Creek State Park, according to Lt. Greg Evans of the Malibu-Lost Hills Sheriff’s Station.

She was pronounced dead at the scene, Evans said. Her identity has not been disclosed.

The woman started hiking at 8 a.m. Saturday, said Malibu Search and Rescue Team Leader David Katz.

“A few hours later, she suffered a reported seizure,” Katz said. “CPR was initiated and performed for 20 to 30 minutes before she was pronounced.”

She died at 2:10 p.m. according to the Los Angeles County coroner’s office.

An advisory closing the trails added that Malibu Search and Rescue responded to several heat-related rescues. The statement urged: “Please do not hike in this heat wave.”

>> Want to read more stories like this? Get our Free Daily Newsletters Here!