PHILADELPHIA (WPVI) -- Police are trying to round up the suspects who have been on a robbery spree across the tristate area.
The suspects have alluded authorities by shielding their faces and giving the FBI and police few leads.
They've allegedly robbed 13 CVS, Rite Aid, and Dollar Store locations over the past two and a half months.
They strike just after the stores open or close.
In surveillance video from one of the robberies the suspects can be seen calmly instructing the employees what to do.
Carrie Adamowski from the FBI explains, "They are marching them back to the office at gunpoint, threatening to kill them, saying, 'hurry up, I'll kill you.' They are forcing them to open the safes."
In one case a manager was zip tied.
The suspects have been getting away with thousands of dollars in cash.
Police know there are two suspects, but a third person may be a scout, going into the stores prior to the robberies. Authorities have released clear images showing the man's face, and the FBI wants you to take a close look at him.
Adamowski says, "They both seem to know where the video cameras are. They are very careful to avoid them. And on a couple occasions they have either damaged or actually taken the DVR systems from the store."
The FBI has not been able to nail down a getaway vehicle make and model. But the suspects have worn some identifiable clothing, like a bucket hat and a draw string bag, and this pink or red belt.
"They are dangerous people. They've committed a lot robberies in a short amount of time, so we'd like to get them off the street," Adamowski said.
And despite the violent nature of these robberies, the FBI says no one was seriously injured. There is an undisclosed reward for information leading to the suspects.