The Roman Catholic Church in Poland says it has evidence Warsaw's new archbishop-designate, Stanislaw Wielgus, collaborated with the country's communist-era security police.

In a statement released Friday, a church commission said it had found numerous documents confirming Wielgus consciously and willingly collaborated with the security organizations of communist Poland.

Polish Catholic Church Says Archbishop-Designate Collaborated with Security Police

The commission said, however, there was not any clear proof he inflicted harm on anyone.

Polish Catholic Church Says Archbishop-Designate Collaborated with Security Police

In response to the allegations, Wielgus acknowledged he had contact with the much-hated communist security police, but said he did no harm in words or deeds.

Polish Catholic Church Says Archbishop-Designate Collaborated with Security Police

The allegations have gripped heavily Catholic Poland in recent days. Commentators have called the scandal surrounding the appointment a crisis for the church. An opinion poll released Friday indicates a majority of Poles believe Wielgus should not be appointed to succeed anti-communist Cardinal Jozef Glemp.

The Vatican has not commented on the revelations noted by the church commission.

Wielgus was appointed by German-born Pope Benedict to become the archbishop of Warsaw last month. He is set to be formally installed Sunday.