New Haven (AP) — U.S. Attorney David Fein is resigning after three years as Connecticut's top federal prosecutor, touting a wide range of prosecutions including child sexual abuse, financial fraud and civil rights.

The 52-year-old Fein announced his resignation Tuesday, saying he intends to return to the private sector. It's effective May 13.

Fein cited more than 60 child exploitation matters, including cases involving a former Peace Corps volunteer convicted of sexually abusing young girls and a Colorado man convicted of sexually abusing children at a school he founded in Haiti.

Fein created a task force to crack down on financial fraud and a statewide initiative aimed at reducing gun and gang violence.

Four East Haven police officers were arrested on civil rights charges and the town reached a settlement mandating wide-ranging reforms of the police department.