10/25/2012 02:08 pm ET

Anna Walters, Substitute Teacher, Arrested For Sex With Minor Student After Naked Tweets Surface: Police

Cops arrested the former Virginia substitute teacher for having inappropriate contact with a student, just days after a student claimed that naked pictures he tweeted were of her.

Investigators first started probing Anna Michelle Walters, 23, last week when recent Cosby High School graduate Justin Foster unleashed a series of tweets that included alleged naked photos of Walters and texts implicating her in sexual encounters with him.

She was arrested on Monday after an investigation allegedly revealed a sexual act between her and a different student last year, inside a classroom after school hours. The student was -- and still is -- a minor, NBC 12 reported.

No charges are being pursued in the alleged relationship between Walters and Foster. But investigators said that the allegations led them to her relationships with additional students who were minors. Foster claims that the two had sex in April, while he was still in school, but those claims have yet to be verified, according to WWBT.

Police obtained warrants against Walters on Wednesday. She's scheduled to make a preliminary court appearance today.



Teacher-Student Sex Abuse Cases