A U.S. Army recruiter living in the Denver area was arrested on suspicion of felony internet exploitation of a child and felony internet luring, authorities said Tuesday.
Sgt. 1st Class Kenneth Lee Hardcastle was taken into custody Monday at his home in Colorado.
An Arapahoe County Sheriff's Department tweet accused him of soliciting girls for sex.
"He's an active duty U.S. Army Recruiter. We worry there may be other victims. If he's chatted with your daughter, call [login to see] ," the sheriff's department's tweet said.
Hardcastle, 31, told a teenager he met on a dating website that he wanted oral sex from a 10-year-old, according to an affidavit filed by the sheriff's department.
CNN affiliate KMGH reported that the sheriff's office said the person Hardcastle was in contact with was a 16-year-old girl, and investigators believe he tried to get naked pictures of her and her friends, some of whom were about 10 years old.
According to the Denver-based station, authorities learned that Hardcastle went by the nickname "Colorado batman" on an adult dating site and had posted his pictures on several social media sites.
CNN has reached out to the sheriff's office for comment on the report.