Conor McGregor donates $1 million to Tunnel to Towers Foundation live on Fox News

The UFC fighter joined 'Hannity' on Wednesday to present Tunnel to Towers CEO Frank Siller with a $1 million donation to help the families of fallen first responders.

World-renowned UFC fighter Conor McGregor honored America's fallen first responders Wednesday with a $1 million check to Tunnel to Towers Foundation CEO Frank Siller in front of a live studio audience on "Hannity."

"As human beings, it's a must to give back," McGregor said. "I work to give back. I work to support my family, and, you know, this is what we must deal with. If people want to help donate to this great foundation, Tunnel to Towers, you can also, we'd appreciate that greatly."

Jul 10, 2021; Las Vegas, Nevada, USA; Conor McGregor fights Dustin Poirier during UFC 264 at T-Mobile Arena. (Gary A. Vasquez-USA TODAY Sports)

McGregor, who previously donated nearly $4 million to the foundation, told Sean Hannity that life is about "giving back."

Hannity announced to his studio audience that he will join McGregor by writing a check for $100,000 to the Tunnel to Towers Foundation. 

Tunnel to Towers Foundation is a nonprofit that honors FDNY firefighter Stephen Siller, who sacrificed his life to save others on Sept. 11, 2001. 

The foundation's mission honors the legacy of American heroes by paying off mortgages for injured veterans, first responders and their families, as well as Gold Star families across the country. 

Tunnel to Towers CEO Frank Siller presents Bristol, Conn., mother Laura DeMonte and her two kids with the news that the mortgage on their house has been paid off. (Tunnel to Towers)

Tunnel to Towers CEO Frank Siller embraces Laura DeMonte, the wife of fallen police sergeant Dustin DeMonte. (Tunnel to Towers)

Tunnel to Towers chairman and CEO