MAHOPAC, N.Y. - The New York State Division of Criminal Justice Services (DCJS) has announced that a registered sexually violent offender has moved to a residence in Mahopac.

The DJCS issued an alert last week that Frank DeMaria, 75, relocated from Valhalla to a Fair Way home in Mahopac. DeMaria, a former grandmaster kung fu instructor, was convicted of sexually abusing four young girls six years ago.

The Division of Criminal Justice Services designated DeMaria a Level 3 threat, which means he is a high-risk repeat offender and a possible threat to public safety. He was also designated as a sexually violent offender.

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According to published reports, DeMaria, a former Ossining resident, had sexual contact with four girls, ages 6 to 11, in October 2010 while he was serving as their kung fu instructor. He was found guilty in February 2012 of three counts of felony sexual conduct against a child, two felony counts of sexual abuse, and four misdemeanor counts of endangering the welfare of a child.

NBC News reported at the time that the four girls said DeMaria had them grab and pull his genitals during lessons at his school, the American Center of Chinese Studies, in Croton-on-Hudson, from 2009 to 2011.

DeMaria, also a retired Westchester County police officer, testified that he told students to kick and slap an attacker's groin in a maneuver called the tiger claw but didn't have them fondle him.

But the Westchester County District Attorney's Office said that the four children told investigators that DeMaria instructed them, on more than one occasion, to grab his genitals repeatedly. DeMaria was sentenced to seven years in state prison and is now under the jurisdiction of the Carmel Police Department.