CAMDEN -- A 32-year-old Camden cop has been charged with sexually assaulting a juvenile after a 15-year-old girl gave birth to his child, according to the Camden County Prosecutor.

Camden County Police Department Det. Rafael Martinez Jr. was suspended without pay after the criminal complaint was filed in Gloucester Township, according to county spokesman Dan Keashen.

Martinez admitted he was the father and signed the baby's birth certificate the night the child was born in mid-August, according to a probable cause statement. The girl told investigators that she and Martinez had had sex on multiple occasions at his home from September 2016 until Aug. 18.

A DNA sample from the girl, Martinez and the baby also confirmed he was the father, authorities said.

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