A former Amazon.com, Inc AMZN An employee, along with 25 colleagues, claimed the retail giant forced them to work in a dangerous environment amid racist graffiti discovered at an Illinois warehouse.

What happened: Tori Davis and 25 other employees made the allegations in complaints to the Commission for Equal Opportunities in Employment, reported Engadget citing reporting from the Chicago Tribune.

Davis, who is black, reportedly brought up Amazon’s handling of an incident involving racist death threats scrawled on a bathroom at the company’s MDW2 warehouse in Joliet, Illinois.

According to the complaint, Amazon also allowed white employees at the warehouse to wear clothing with the Confederate flag on it.

See also: How to Buy Amazon (AMZN) Stock

Why it matters: Police were investigating the incident after Amazon allegedly texted employees that law enforcement “had found no threats to the site’s security,” Engadget reported.

Davis reportedly said she was fired after threatening legal action if Amazon didn’t address the incident.

“Amazon works hard to protect our employees from any form of discrimination and to create an environment where employees feel safe,” an Amazon spokesman said, according to Engadget.

Davis is appealing her termination and told a news conference that she would like to see additional safety guidelines at the camp, according to the report.

Last year, Amazon suspended construction at a Connecticut site after a noose was discovered hanging from a steel beam, sentenced by the state National Association for the Advancement of Colored People as an incident of racism.

Price promotion: On Thursday, Amazon shares rose 13.6% in after-hours trading to $138.95 after closing 1.1% higher in regular trading at $122.28 Data from Benzinga Pro.

Continue reading: Amazon Q2 Earnings Highlights: Drop in Sales, Loss in Rivian Investments, Prime Day, Guidance & More