Authorities were investigating an incident in which Britney Spears was photographed driving with her infant son on her lap, but didn't intend to pursue charges against the pop star, officials said.

Los Angeles County Sheriff's Sgt. Diane Hecht said Tuesday that deputies went to Spears' home to collect information for the county Department of Family and Children Services. A DCFS spokesman wouldn't offer specifics.

"We don't say who, what or if we're investigating," department spokesman Stu Riskin said.

The sheriff's department won't pursue any charges, Deputy Luis Castro said.

"Unless a deputy saw the violation, there's nothing we can do," he said. "We don't even know if this took place in our jurisdiction."

Several photos published Tuesday showed Spears driving with her son, Sean Preston, perched on her lap rather than strapped into a car seat in the back seat. Spears said she did it because of a "horrifying, frightful encounter with the paparazzi."

The photos show Spears holding the wheel of the car with one hand, and her 4-month-old baby in the other. A person is shown sitting in the passenger seat next to Spears.

"I was terrified that this time the physically aggressive paparazzi would put both me and my baby in danger," Spears, 24, said in a statement released late Monday.

"I instinctively took measures to get my baby and me out of harm's way, but the paparazzi continued to stalk us," she said. "I love my child and would do anything to protect him."

The agency that snapped the photos, X17, said the pictures were taken "in a very peaceful context, in which photographers exhibited no aggressive behavior."

"We believe that the pictures speak for themselves," the agency said in a statement.