Port Authority officials say a registered sex offender from New York City has been arrested on charges he groped a New Jersey woman aboard a port authority train on two occasions.

The Star-Ledger reports 61-year-old Gian Verdelli of Brooklyn was arrested Monday in Jersey City by undercover officers, who identified him by using a cell phone photo the 28-year woman took of her alleged attacker after a July 3 incident. She said the same man had also groped her on June 30.

Officials say Verdelli has 160 prior arrests on similar charges.

He's charged with two counts of criminal sexual misconduct and possession of marijuana and drug paraphernalia.

Verdelli was being held without bail, and it's not known if he has retained an attorney.

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