More than 30,000 people took part in the 14th annual "Stephen Siller Tunnel to Towers Run."
Participants started at the Brooklyn Battery Tunnel and traveled through lower Manhattan to West St. and Murray St. across from the World Trade Center.
The event honors those who died trying to help people on September 11th.
The 5k run and walk follows the last footsteps of firefighter Stephen Siller.
Siller left his truck and ran through the tunnel and straight to the towers on 9/11.
He died rescuing people from the burning towers before they collapsed.
"Over the years. I've watched this Run/Walk evolve into both an annual celebration of everyone who gave their lives that day, as well as a life-affirming event for the future of this great nation," said Frank Siller, one of Stephen's siblings and chairman of the Foundation. "With the help of volunteers, donations and dedication, we are given the opportunity to honor Stephen and all of his firefighter brothers in the most unique way."
The annual event has helped raise more than $50 million for various initiatives and programs, including supporting our nation's catastrophically injured service members through the Building for America's Bravest program.