A migrant accused of raping a disabled girl at a Bay State shelter has pleaded not guilty to the sexual assault charges, according to the Plymouth County DA’s office.

Cory Alvarez, 26, is accused of raping a 15-year-old disabled girl at a state-run shelter in Rockland.

Alvarez, a national from Haiti, has been charged with one count of aggravated rape of a child with a 10 year age difference, and one count of child rape by force. He pleaded not guilty to the charges on Friday.

The migrant child rape case has sparked a Congressional inquiry and led to more Republican-fueled criticism of the emergency shelter system in Massachusetts.

Rockland Police responded to the Comfort Inn on Hingham Street for a report of a sexual assault on March 13. The Comfort Inn is part of a state-run program to house migrant families, and Alvarez was staying there.

Police officers upon arrival encountered the 15-year-old alleged victim, who was transported to South Shore Hospital for treatment.

Rockland Police through their investigation identified Alvarez as the suspect, and they took him into custody.

Alvarez, who entered the U.S. lawfully through a federal program and underwent two state sex offender checks, was found dangerous in March. He remains held without bail.

Alvarez was screened and vetted against national security and public safety databases when he entered the United States and no “derogatory information” was found, according to the Department of Homeland Security.

The emergency shelter system in Massachusetts houses more than 7,500 families, including migrants from other countries and local residents.

Alvarez is next scheduled to appear in court on June 11.