A warrant for Lewis' arrest was issued on a count of misdemeanor domestic violence. No arraignment date was listed in the court documents, according to multiple media reports.
Ann Arbor Det. Lt. Matthew Lige told multiple media outlets that a woman believed to be Lewis' girlfriend called 911 at 1 a.m. She told the responding police officers that Lewis assaulted her after an argument.
"There were no visible apparent signs of injury, but she is claiming that assault occurred," Lige told ESPN. "Assault can occur without apparent injury. It wasn't clear if an assault had occurred, so officers released him at the scene."
Lewis, who wasn't on the scene when police arrived, subsequently met with officers in a different location.
Lewis tweeted Wednesday afternoon, "It's sad that somebody would want to control you so bad they would ruin your life over it." He later deleted the tweet.
A 5-foot-10, 188-pound senior, Lewis is ranked by NFLDraftScout.com as the eighth-best cornerback prospect and the 46th-best overall prospect. He is projected to be a second-round draft choice.