St Patrick's Cathedral Graffiti
© Christopher SadowskGraffiti on St Patrick's Cathedral in the wake of the George Floyd protests today.
Is nothing sacred?

Protesters desecrated St. Patrick's Cathedral with graffiti Saturday, staining stairs and spewing hatred on two walls.

The graffiti on one wall on Fifth Avenue and 51st Street read "F-k F-k" in red letters. On an adjacent wall, vandals scrawled "BLM" โ€” for Black Lives Matter โ€” along with "NYPDK" in red letters and "No justice no peace" in black letters.

One of the stairs was spray-painted with "George Floyd" in black letters.

A Post reporter spotted the vandalism at around 6:30 p.m. Police at the scene declined immediate comment.

The sacrilegious scrawl was more than likely etched while protesters marched down Fifth Avenue past the Cathedral earlier Saturday.

Angry protests over the Minneapolis police killing of George Floyd shut down Manhattan's two major highways for much of Saturday afternoon.

A northern stretch of the FDR Drive on the island's East Side was shut โ€” first by some 150 protesters and then by the NYPD โ€” after 2 p.m.

New York Archdiocese spokesman Joseph Zwilling was unaware of the crime when contacted by The Post Saturday night.