Human skeletal remains were found in Calabasas Wednesday morning, officials said.
The remains were found by a Caltrans worker about 9:30 a.m. in the 25100 block of Calabasas Road, according to the Los Angeles County Sheriff's Department.
Homicide detectives responded to the area to investigate the circumstances.
The area where authorities are investigating is near the 101 Freeway and the remains were found off a hiking trail, Lt. Rodney Moore said.
He added that the remains appeared to have been there for a "significant amount of time."
Aerial video from Sky5 showed several sheriff's vehicles responded to the area.
Authorities initially indicated in a news release that the body of a man was found, but later said they could not confirm that detail. Officials at the scene later said they had located skeletal remains.
The person's cause of death is also not yet known as authorities continue to investigate.
Anyone with information can call the Los Angeles County Sheriff's Department's homicide bureau at 323-890-5500.
Two bodies were found in the area since May, the Los Angeles Times reported.