LINCOLN, Neb. (AP) — A Lincoln woman accused of having a sexual relationship with one of her foster children has been charged with one count of felony child abuse.

The 29-year-old woman was arrested last month. She faces arraignment in Lancaster County District Court on Aug. 15.

The Associated Press is not naming the woman to protect the identity of her foster son.

Police say the sexual relationship began in October 2010, when the boy was 17, and lasted two years. The now-19-year-old man told police in May about the relationship.

Police say the woman told investigators she began having sex with the teenager after her husband left her.

Authorities say two other foster children were taken from the woman’s home when she was arrested.