Police: Adrian Peterson's son, 2, has died

Adrian Peterson was in South Dakota on Thursday for personal reasons. (Photo by Andy Clayton King/Getty Images) Police officials confirmed Friday afternoon

Adrian Peterson was in South Dakota on Thursday for personal reasons. (Photo by Andy Clayton King/Getty Images)

Police officials confirmed Friday afternoon that Adrian Peterson's son, 2, had died.

Stu Whitney of the Argus Leader reported Thursday that Peterson was in Sioux Falls, S.D., dealing with a very serious medical issue involving a young family member that was likely to become a police matter.

Reports later stated that Peterson's two-year-old son had allegedly been beaten by the boyfriend of the child's mother. The man was arrested, and police said Friday afternoon that the state's attorney's office is considering additional charges.

Adrian Peterson's father spoke with the Pioneer Press's Sean Jensen earlier in the day.

"We are asking for prayers and for respect for our family as (we) deal with this tragic situation," Nelson Peterson told Jensen.

FARRAR: South Dakota police confirm that Adrian Peterson's son has died

Shortly after the police announcement, Peterson tweeted the following:

Thank you to my family, my fans and fans of other teams for their support.

— Adrian Peterson (@AdrianPeterson) October 11, 2013

The NFL is a fraternity of brothers and I am thankful for the tweets, phone calls and text messages from my fellow players.

— Adrian Peterson (@AdrianPeterson) October 11, 2013