CASPER, Wyo. (AP) — Two Catholic Church officials who succeeded a Wyoming bishop accused of sexual abuse say a lack of victim cooperation hampered the investigations.

The Casper Star-Tribune reports at least 16 men said they were abused by former Bishop Joseph Hart, who retired in 2001.

Bishop David Ricken took over for Hart in Wyoming before transferring to Wisconsin in 2008. He was followed by Bishop Paul Etienne, who headed the Cheyenne diocese until 2016.

The diocese says a 2002 allegation against Hart was forwarded by Ricken to police but was dropped due to a lack of alleged victim cooperation.

The church says Etienne requested a Vatican investigation into Hart in 2010, but did not initiate his own investigation because alleged victims "were not willing to speak."

Hart has denied all allegations.

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