The Russian Orthodox Church has cut ties with the Episcopal Church in the United States over its ordination of an openly gay bishop.

In a statement issued Monday in Moscow, the Russian Orthodox Church said the ordination of a homosexual bishop makes any communications with the bishop or those who elected him impossible. The Russian Church went on to describe homosexuality as a grave sin, adding it could not show any sign of acceptance of a position that it considers un-Christian and blasphemous.

The U.S. Episcopal Church consecrated Gene Robinson as bishop two weeks ago. Bishop Robinson is openly gay.

The Russian Orthodox Church has been taking part in ecumenical meetings with other Christian Churches for several decades.