LOS ANGELES (AP) — Detectives have arrested a mother for investigation of murder in the deaths of her three small children in East Los Angeles.

The Los Angeles County Sheriff’s Department said Tuesday that 28-year-old Sandra Chico is being held on $2 million bail and is scheduled to appear in a Los Angeles courtroom on Wednesday. A department statement says only that the arrest was based on the detectives’ preliminary investigation and that no additional information is available.

The two boys and a girl were found in a bedroom on Monday. It's not immediately known if Chico has an attorney to speak on her behalf.