U.S. Postal Service workers are holding protests outside postal facilities and congressional offices across the nation to demand better working conditions.

In a news release, members of the American Postal Workers Union said they are calling on USPS to address staffing shortages and other issues.

'Although the USPS’ finances have improved significantly due to passage of the Postal Service Reform Act, service problems are widespread and no corner of the country has been spared,” said American Postal Workers Union President Mark Dimondstein.

Dimondstein believes new hires at the USPS are often treated poorly and many fail to receive proper training, causing a high turnover rate.

He added that the pressures of short staffing, a high volume of mail and packages, abusive treatment by managers and a "toxic work environment" have also been factors for mail delays.