A female Somerville school teacher will be arraigned in court on Wednesday after being indicted by a grand jury for allegedly having a sexual relationship with a 13-year-old.
Alexandra Romanos, 41, of Stoneham, was indicted on charges including aggravated rape of a child and indecent assault and battery on a child under the age of 14 by a mandated reporter, the Middlesex district attorney's office said Monday.
Authorities have said that Romanos, a teacher at the East Somerville Community School, initiated a sexual relationship with a 13-year-old that occurred both on and off school grounds.
Romanos was arrested in July and pleaded not guilty during her district court arraignment.
Romanos will be arraigned Wednesday in Woburn Superior Court.
Somerville schools placed Romanos on administrative leave shortly after her arrest. At that time, Mayor Joseph Curtatone said in a statement that "The safety and well-being of our students is always our highest priority ..."
Follow Michael Naughton on Twitter @metrobosmike.