A mailman was robbed and assaulted at gunpoint Tuesday afternoon while on the job, according to police.

The incident reportedly occurred behind an apartment building in the unit block of Hawaii Avenue NE around 5 p.m.

Documents state the mailman was accosted by two masked men -- at least one of whom had a gun at the time. They kept asking the mailman, "What did you do with the package?" and eventually pulled a gun on him, saying, "I'm [going] to kill you!"

The mailman -- who also works as a pastor -- then began praying out loud to be saved. That's when police say the men bound him up in duct tape, drove to a nearby apartment and tossed him onto a parking lot.

"I'm just devastated," one neighbor told News4.

Police say it is unclear whether the mailman's master key was stolen -- the key has access to panels of mailboxes at various apartment buildings.

The Post Office is offering a $50,000 reward for information leading to an arrest in the case.

Less than three months ago, a mailman was killed on the job in Prince George's County. No arrest has been made.