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Report: Man, woman, 2 children found dead in Calif. home

Police say a husband, wife and their two children were found shot to death in an apparent murder-suicide inside a Fontana, Calif. home, Dec. 30, 2013.

FONTANA, Calif. -- Four people, including two children, were found dead Monday night inside a Fontana, Calif. home, reports CBS LA.

Police are describing the deceased as a 10-year-old boy, a 12-year-old girl and a man and woman, both between the ages of 35 and 40, reports the station.

Police say a 16-year-old boy called authorities and said his family members had been injured or killed, reported the station.

All four lived at the home, officials said, but it wasn’t clear whether or how they were related.

Neighbors reported hearing loud arguing coming from the house Monday evening, neighbors told CBS LA.

Fontana is about 50 miles east of Los Angeles.