Authorities announced Wednesday that the remains of four people were found at a grave site Wednesday in unincorporated Victorville.

A motorcyclist stumbled upon the first set of remains Monday morning in the desert area between Quarry Road and the 15 Freeway, according to the San Bernardino County Sheriff's Department.

Coroner's officials confirmed that the remains were human and returned with homicide investigators Tuesday to continue the investigation.

Now, "investigators believe they have located the remains of more than one person," the Sheriff's Department said, adding that it appears the remains have been there for some time.

Crews excavated the site to determine if there were any more remains.

ALSO:

Man gets death penalty for torturing, killing 84-year-old widow

Santa Monica dog walker charged after dog bites 4-year-old girl

Woman defrauded nuns of $285,000 to buy lingerie, lease sports car

rick.rojas@latimes.com