Officials have issued a nationwide Amber Alert for two children, after their mother's body was discovered inside a home that burned to the ground in Boulevard, San Diego County.

Sheriff's officials have identified the victim as 44-year-old Christina Anderson of Lakeside. Officials determined she had been murdered.

A child's remains were also found on the property, according to the sheriff's department. Investigators haven't released that child's identity or cause of death.

They also found a dog that had been killed, according to officials.

Deputies were called to the 2000-block of Ross Avenue in the unincorporated community of Boulevard around 8 p.m. Sunday. Firefighters from CalFire and Pine Valley also responded.

Deputies obtained a search warrant around 5 a.m. Monday to search the property for other potential victims, according to spokesperson Lt. Glenn Giannantonio.

Officials are searching for suspect James Lee Dimaggio (pictured below) in relation to the incident. He owned the home that burned down, and sheriff's officials said he had a "close platonic relationship" with Anderson.

They are also looking for the victim's two children, 8-year-old Ethan Anderson and 16-year-old Hannah Marie Anderson (pictured below.) Officials think they could have been abducted by DiMaggio.

The three may be traveling together in a 2013 Nissan Versa with the license plate 6WCU986.

If you see these people, do not approach them and call 911. Anyone with information on the suspect or people should call Crime Stoppers at 888-580-8477.