FONTANA, Calif. (AP) - A Southern California father posing as his teen daughter in text messages has helped police arrest a child sex predator.

Investigators say 19-year-old Anthony Sinclair was sending text messages to lure a 16-year-old girl into posing nude for photographs.

Fontana police Sgt. Robert Morris says the girl's father, pretending to be his daughter, sent text messages to Sinclair to set up a Sunday night meeting at a fast-food restaurant.

Officers were called to the restaurant because of a fight between the father and Sinclair.

Investigators say Sinclair was also in possession of porn.

The San Bernardino man was arrested and booked for investigation of sending harmful material to a minor, annoying a minor and possession of sexually obscene material.

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