Tom Gannam, Associated Press
Minnesota Vikings running back Adrian Peterson (28) runs for a 5-yard gain as St. Louis Rams defensive end Chris Long, right, defends during the first quarter an NFL football game Sunday, Sept. 7, 2014, in St. Louis.

The attorney for Adrian Peterson says the Minnesota Vikings star running back has been indicted by a Texas grand jury on a charge of child abuse.

Attorney Rusty Hardin says the charge in Montgomery County accused Peterson of using a branch, or switch, to spank his son. He says Peterson has cooperated with authorities and "used his judgment as a parent to discipline his son."

He says Peterson regrets the incident and never intended to harm the boy.

The allegations come during a week in which the NFL has been under heavy scrutiny for the way it handled a domestic abuse case involving former Ravens running back Ray Rice and his then-fiancee. Peterson has rushed for 10,190 yards and 86 touchdowns in eight seasons.