BROCKTON, Mass. -- A Boston deputy fire chief who's already facing a rape charge has been arrested again.

According to the Plymouth District Attorney, Peter Pearson, 51, was arrested on Friday night and now faces additional charges of aggravated rape, kidnapping for sexual intercourse, assault with a dangerous weapon and impersonating a police officer.

Law enforcement officials said the arrest is the result of allegations from a second victim who came forward to police.

Pearson had been freed on bail earlier in the week after pleading not guilty to stalking and raping a woman at gunpoint in Brockton while posing as a state trooper.

He will be arraigned in the Brockton District Court.

Pearson is on unpaid leave from the Boston Fire Department.