Uber fired more than 20 employees. Here is why...

Uber CEO Travis Kalanick

Uber has fired more than 20 employees as part of its internal investigation into sexual harassment and other bad behavior at the company, the company said.

The ride-hailing company announced the news internally to its 12,000 employees on Tuesday, the latest development in a series of scandals and controversies that have rocked the world's most valuable private tech company.

The investigation by the outside law firm Perkins Coie looked into 215 claims of inappropriate workplace incidents.

According to Uber, here's the breakdown of all the 215 complaints:

Discrimination: 54 

Sexual harassment: 47

Unprofessional behavior: 45

Bullying: 33

Harassment (other): 19

Retaliation: 13

Physical security: 3

Wrongful termination: 1

As a result of the investigation, the company fired 20 employees. Another 31 employees are in training and 7 have been issued final warnings. 57 claims remain under review and the company didn't take action in 100 of the claims, according to Uber.

The Perkins Coie investigation lays the groundwork for the investigation being conducted for Uber by Eric Holder, the former US attorney general. Holder has provided recommendations, based on the Perkins Coie findings, to Uber's board, though it's not yet clear what those are. The company plans to release that information to its employees next week at an all-hands meeting. The majority of the complaints came from the San Francisco headquarters, although they received claims for employees all over the world, a person familiar said.

Uber's CEO, Travis Kalanick, launched an internal investigation in February after a former employee, Susan Fowler, said in a personal blog post that she was sexually harassed and experienced gender bias during her time at the company. The company has been interviewing its employees internally, as well as having Perkins Coie and Holder investigate the company's workplace. News of the terminations was first reported by Bloomberg.