More than 15,000 Gwinnett County voters cast ballots in Georgia’s U.S. Senate runoff on Saturday alone, according to an official with the Georgia Secretary of State’s Office.

Secretary of State’s Office Chief Operating Officer Gabriel Sterling said 15,053 Gwinnett voters cast ballots on the first day of advance in-person voting in the county this weekend. Another 15,633 voters cast ballots in Gwinnett on Sunday, according to Sterling. County numbers show an additional 17,890 people voted on Monday.