Cardinal Timothy Dolan is sick with the flu and will miss Midnight Mass at St. Patrick's Cathedral.

Bishop John O'Hara, the auxiliary bishop of the New York Archdiocese, is expected to lead the mass instead, Archdiocese officials said Sunday afternoon.

The annual Christmas Midnight Mass is expected to bring thousands to St. Patrick's Cathedral.

There is no word on Dolan's status for Monday's morning mass.