Three teen girls, including one who was pregnant, were fatally shot Saturday night in Texas by a man who then killed himself in an apparent murder-suicide, police said. 

A 12-year-old girl said her mother’s boyfriend, 38, sexually assaulted her and shot three other teens inside the house in Galena Park, Texas, police said. The girl and her 1-year-old niece escaped to a neighbor’s house to call for help. 

Galena Park police found the bodies of three girls, ages 19, 14 and 13, dead with gunshot wounds inside the house. Police recovered a gun next to the 38-year-old man who was found dead in the master bedroom from an apparent self-inflicted gunshot wound, according to Harris County Sheriff Ed Gonzalez.

The identities of the shooter and teen victims will not be released until they are confirmed by investigators, Gonzalez said.