The U.S. Postal Inspection Service is offering a reward up to $150,000 for information leading to the arrest and conviction of suspects involved in the robberies fo letter carriers.

Dozens of letter carriers gathered in Federal Plaza Sunday afternoon to protest the Trump administration's threats to the U.S. Postal Service.

Sunday's rallies took place as the Trump administration prepares to cut 10,000 workers and billions of dollars from the postal service.