Protests stop Brooklyn-bound traffic on the Brooklyn Bridge in New York

A protest march on Saturday has led to the closing of all Brooklyn-bound lanes on New York City’s Brooklyn Bridge, officials say.

“Due to protest activity, all Brooklyn-bound lanes of the Brooklyn Bridge are closed. Consider alternate routes and allow for additional travel time,” NYC Emergency Management said on its verified Twitter account Saturday.

As of 6:30 p.m. ET approximately 1,200 orderly protestors were marching on the bridge as part of the Unite New York Fourth of July Rally & March, the New York Police Department said.

This is a developing story. Check back for more updates.