Adrian Peterson indicted in Texas

— -- Minnesota Vikings star running back Adrian Peterson has been indicted by a Montgomery County, Texas, grand jury on charges of reckless or negligent injury to a child, according to multiple media reports .

Fox 26 in Houston initially reported the story Friday, citing attorney Rusty Hardin.

Montgomery County sheriff investigators said they received the case earlier this year and that Peterson has been cooperative with them. The Montgomery County District Attorney's office told ESPN that Peterson has not been arrested.

The Vikings released a statement Friday saying they're in the process of gathering information about Peterson's legal situation.

Peterson practiced Friday with the Vikings, who play host to the Patriots on Sunday.

Last October, Peterson's 2-year-old son died in Sioux Falls, South Dakota, after being allegedly assaulted by a man who was dating the boy's mother. Peterson learned only two months earlier that he was the boy's father. The man who assaulted the boy, Joseph Robert Patterson, was charged with murder and manslaughter.

Peterson reflected on his loss  in an August interview with Vikings reporter Ben Goessling.

"It's just made me stop taking things for granted," said Peterson, who turned 29 in March. "Life is short. You never know. You just want to take advantage of the time you do have."

Peterson, in his eighth NFL season, rushed for 10,115 yards through his first seven full seasons as a pro, the fifth-most for any running back in NFL history during that specific time frame.