A man has been accused of helping a woman escape from a group home in Massachusetts and then sexually assaulting her at his summer home in Maine.

The Cumberland County Sheriff's Department said Monday that Attleboro, Massachusetts, resident William Francis Duffy is charged with gross sexual assault and unlawful sexual contact.

Sgt. Paul Thorpe says deputies responded after the woman called for help while being assaulted Saturday at Duffy's summer home in Sebago, Maine. Thorpe says Duffy had corresponded with the woman on a website for abused women before helping her escape from a group home in Carver, Massachusetts.

Duffy was arrested Sunday. He was returned to jail after making his first court appearance Monday and can't be reached for comment. A message has been left at his home.