LOS ANGELES — A woman suspected of making and appearing in child pornography photos a decade ago was arrested hours after authorities released images of her taken from those shots, federal officials announced Friday.

Letha Mae Montemayor, 52, was taken into custody outside a San Fernando Valley apartment complex after authorities received several tips. She faces charges of producing child pornography and conspiracy, officials said. Each charge carries a minimum 15-year prison sentence.

An unidentified man also seen in the photos was still being sought.

Montemayor was arrested fewer than 10 hours after federal authorities announced that they were looking for a man and woman who appeared to be molesting a girl who looked to be about 13 in photos that were widely circulated online.

Forensic experts believe the shots were taken about 11 years ago in the San Fernando Valley. A phone book and calendar were seen in the shots, officials said.

The images were first discovered by Immigration and Customs Enforcement agents in Chicago in 2007.