The NASCAR Cup Series organization has launched an investigation into a noose found on Sunday night Monday in the garage box of Bubba Wallace at Talladega Superspeedway in Alabama. The driver has explicitly spoken out for a long time in the fight against racism.

In addition to the noose found, a plane flew above the circuit in Alabama with behind it the call to sponsors to withdraw from the largest American racing class. NASCAR takes the incident high.

"We are angry and outraged and cannot emphasize enough how seriously we take this horrific incident," said a statement. "We immediately launched an investigation and will do everything we can to find the perpetrators and keep them out of the sport."

Under pressure from 26-year-old Wallace, the only black NASCAR driver, the controversial Confederate Flag (referring to the slavery past) was recently banned.

Wallace says the noose is "incredibly sad". "This is a painful reminder of the long way to go as a society and how persistent we need to be in our fight against racism," he wrote on Twitter.

The Alabama race was canceled due to rain. NASCAR season resumed last month in South Carolina with the first major race since the corona virus outbreak.

See also: How 'conservative' NASCAR tries to get rid of its image