Los Angeles County coroner's officials were investigating the site of a possible shallow grave at Angeles National Forest on Wednesday morning.
Authorities have been unable to confirm whether there is a body inside the reported grave, said Lt. Cheryl MacWillie.
Investigators are working near the 292-mile marker on Big Tujunga Canyon Road, The Times reported.
Hikers reported the shallow grave near a trail early Wednesday, according to KTLA-TV.
-- Adolfo Flores, Los Angeles Times