On this 24th anniversary of the Sept. 11 attacks, New Yorkers are once again pausing to remember the nearly 3,000 lives lost and the heroes who answered the call that day.

This morning, firefighters from FDNY’s Battalion 57 marched across the Brooklyn Bridge, carrying American and FDNY flags in honor of the 23 members they lost on 9/11. Walking shoulder to shoulder in full uniform, the sight was a powerful reminder of sacrifice that still hits home more than two decades later.

“It’s a tradition—as long as you’re alive, we’re gonna keep it going to pay respect for the men and women who made the ultimate sacrifice,” said retired firefighter Jack Burke.

The procession led into Prospect Heights, where Bishop Robert Brennan celebrated a special Mass at the Co-Cathedral of St. Joseph. “It’s a somber day and they’re a big part of our life, part of our family—so we want to remember and honor,” Bishop Brennan said.

Across Brooklyn, other communities are holding tributes. Marine Park will host a ceremony at 5 p.m., and Bay Ridge gathers tonight at the American Veterans Memorial Pier at 7.

At Green-Wood Cemetery, where more than 100 people who died on 9/11 are buried, the names of victims will be read. The evening will close with the “Tribute in Light,” two beams shining into the night sky over lower Manhattan.

For many, the lights remain one of the most powerful symbols of remembrance. “I look forward to the beacons that go up into the sky,” said Diana Granat of Downtown Brooklyn. “I would really miss them if they didn’t have them. I come out when they turn them on and I try to catch them before they turn them off as well.”

Here in Brooklyn, and across the city, New Yorkers continue to stand together—24 years later—to make sure the promise of “never forget” lives on.