Starbucks said today it will close more than 8,000 company-owned stores across the nation for one afternoon to train its staff on how to avoid “racial bias” after the arrest of two black men at one of its Philadelphia shops, an incident the coffee giant’s CEO called “reprehensible.”

The training is scheduled for the afternoon of May 29 and will be geared toward “preventing discrimination in our stores,” Starbucks said.

Nearly 170,000 Starbucks employees are expected to go through the training, which will become part of the onboarding process for new workers, the company said in a statement.

“I’ve spent the last few days in Philadelphia with my leadership team listening to the community, learning what we did wrong and the steps we need to take to fix it,” Kevin Johnson, Starbucks chief executive officer, said in a statement.

Read more at ABC News.