Dozens of current and retired officers from the New York Police Department rallied on Saturday morning in support of Colin Kaepernick, the former San Francisco 49ers player lionized and reviled for refusing to stand during the national anthem.

[Read More: How black N.Y.P.D. officers feel about the George Floyd protests.]

The gathering in Brooklyn Bridge Park was organized by Sgt. Edwin Raymond and attended by about 80 officers who wore black T-shirts emblazoned with “#IMWITHKAP.” Frank Serpico, a former officer who exposed corruption in the New York Police Department in the 1970s, attended.

Speakers, including City Councilman Jumaane D. Williams, Democrat of Brooklyn, linked the backlash against Kaepernick’s gesture — no team has signed the quarterback for this season — to the violence last weekend during a white nationalist march in Charlottesville, Va., and more generally to issues of police accountability.