Herman Cain, the former pizza chain executive who sought the 2012 Republican presidential nomination, has died weeks after testing positive for the coronavirus, according to an announcement Thursday on his website.

His death was confirmed to The Washington Post and the cause was COVID-19, the disease caused by the novel coronavirus.

While it is unclear where Cain, who was 74, contracted the disease, he was among several thousand people who attended a Trump campaign rally in Tulsa on June 20, most of whom did not wear masks. Cain, who co-chaired Black Voices for Trump, was pictured maskless and not socially distancing at the event.