Washington (CNN) President Donald Trump on Monday signed an act into law which authorizes the extension of the 9/11 Victim Compensation Fund.

"Today we come together as one nation to support our September 11th heroes to care for their families and to renew our eternal vow -- never ever forget," Trump said during a White House Rose Garden ceremony, calling the fund's extension part of "a sacred duty."

The President was joined by more than 200 individuals affected by the 9/11 terrorist attacks, including more than 60 first responders.

"The love and loyalty of our 9/11 responders knew no bounds," Trump said. "They answered terror with the emotional strength of true American warriors."

Former New York City Mayor Rudy Giuliani, who has served as Trump's personal attorney, was among the lawmakers in the audience. The family of the late Luis Alvarez , a retired NYPD bomb squad detective who testified before Congress to advocate for the extension of the fund, was also in attendance. The President thanked Alvarez's family for his hard work.

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