http://www.goarch.org/en/special/september11/
...In response to the tragedy of September 11, the Greek Orthodox Church in America has offered continual prayers for the victims and their families, as well as faithful and compassionate service to those in need, to our nation and its leaders. Within hours after the attacks, His Eminence Archbishop Demetrios issued a directive for all of our churches throughout the country to be opened and prayer services to be conducted for divine protection, consolation, and for the repose of the souls of those who died. Within days the Archdiocese established the September 11 Relief Fund for the families of the victims and facilitated the opening of several Relief Centers in coordination with International Orthodox Christian Charities (IOCC). ...