PROVIDENCE, R.I. -

A man from Springfield, Mo., agreed to plead guilty for taking a 17-year-old girl from Massachusetts to Rhode Island with the intent of selling her for sex.  Prosecutors say Stephen Ardrey, 30, took the developmentally delayed girl from a library in Medfield, Mass., in September.  She was found a few days later in Coventry, R.I., after someone saw her walking with Ardrey.

Officers arrested Ardrey and he's been in federal custody since then.  In a plea agreement entered this week in federal court in Providence, Ardrey agreed to plead guilty to trafficking a minor and transporting a minor to engage in sex.  He is scheduled to be arraigned on Tuesday.

The charges carry a mandatory minimum of 10 years in prison.