MINNEAPOLIS - A US man has pleaded guilty to answering an online advertisement for baby-sitting work and then using the client's child to make a pornographic video.

In a plea deal with federal prosecutors, Aaron Jay Lemon admitted Wednesday to producing the video. The 23-year-old from Little Canada also admitted to coercing a minor to engage in sexually explicit conduct.

The plea agreement says Lemon filmed the child in St. Paul after seeking the baby-sitting job through Craigslist, the popular classified ads site. St. Paul police say the victim was a 2-year-old girl.

The US attorney's office says the case was part of a project that encourages agencies to investigate the sexual exploitation of children over the Internet.

The office says Lemon faces a maximum of 30 years in prison. -- AP