The Players Coalition and dozens of professional athletes sent a letter Friday to Attorney General William Barr and FBI Director Christopher Wray requesting an immediate federal investigation into the shooting death of Ahmaud Arbery in Georgia.

The letter was also sent to Eric Dreiband, assistant attorney general for the civil rights division. It was signed by such sports stars as Tom Brady, Steve Kerr and Players Coalition co-founders Anquan Boldin and Malcolm Jenkins.

Today should've been Ahmaud Arbery's 26th birthday. Instead, our nation is mourning. Because of the local conflict of interest, , other athletes, and I are urging Attorney General Barr, to have the FBI and the DOJ investigate this tragic death. We need action. pic.twitter.com/2qG8lih6A4

— Anquan Boldin () May 8, 2020

The coalition was formed in 2017 to raise awareness about police and community relations, criminal justice reform and education and economic advancement. It developed out of the dispute between NFL team owners and the players who were kneeling during the national anthem to bring a focus to social injustice.

The letter requested that the FBI and the Department of Justice's Civil Rights Division lead the investigation into the shooting of Arbery, a black man, on Feb. 23. Two white men, Travis and Greg McMichael, were charged this week this week with murder and aggravated assault after a video of the shooting was leaked.

National outrage over the case swelled this week after cellphone video surfaced that appeared to show the shooting.

NBA stars LeBron James and Stephen Curry were among those reacting to Arbery's death on social media this week.

heavens above to your family!!🙏🏾✊🏾❤️ #StayWoke #ProfiledCauseWeAreSimplyBlack 😢😢

— LeBron James () May 6, 2020

A similar request for a federal investigation was made by the lawyer for Arbery's family.

"The FBI has said it's assisting and as is standard protocol we look forward to working with them should information come to light of a potential federal violation," Justice Department spokesman Matt Lloyd said Wednesday.

The coalition's letter cites alleged delays by Georgia prosecutors and asks for a "robust federally led investigation ... the only way to restore community trust that Mr. Arbery's death will be fully investigated."

It includes 64 signatures, including Pro Football Hall of Famer Aeneas Williams and Troy Vincent, the NFL's Executive Vice President of football operations.