Early Monday, a noose was found in Wallace's team's vehicle garage stall.
NASCAR driver Denny Hamlin's auto sported a new look during Monday's Talladega Superspeedway race in Alabama, The Hill reports.
Wallace, the only full-time African-American NASCAR driver, had '#BlackLivesMatter' emblazoned on the side of his auto for a recent race.
In the wake of the nationwide protests against racism, NASCAR announced earlier this month that Confederate flags would be prohibited from all events and properties.
NASCAR President Steve Phelps said Monday that those responsible will be "banned from this sport for life".
U.S. Attorney Jay Town and FBI Special Agent in Charge Johnnie Sharp Jr. said its investigation determined "although the noose is now known to have been in garage number 4 in 2019, nobody could have known Mr. Wallace would be assigned to garage number 4 last week".
Before the start of the race, NASCAR drivers helped push Wallace's No. 43 auto to the front of the field in a sign of support for the driver, who now is NASCAR's only black full-time driver. Angry fans with Confederate flags drove past the main entrance to the Alabama race track before Sunday's race.
"Today's despicable act of racism and hatred leaves me incredibly saddened and serves as a painful reminder of how much further we have to go as a society and how persistent we must be in the fight against racism".
"This will not break me, I will not give in, nor will I back down".
"We offer our thanks to NASCAR, Mr. Wallace, and everyone who cooperated with this investigation", the statement said. Petty, 82, had not originally planned to attend the race due to concerns about the coronavirus. "I will continue to proudly stand for what I believe in", Wallace wrote.
"Also at Talladega, the hashtag"#IStandWithBubba" had been painted in the grass.
But Monday's race seemed to take the new focus to greater, more meaningful lengths and showed more than just NASCAR officials are on board with creating an inclusive circuit.
CAF postpones 2021 AFCON by a year over Covid-19
There was a boost for the women's game however with the launch of a new Women's Champions League for Africa in 2021. There will be a single semifinal stage and then the final, likely in September, said the CAF president.