Southfield police arrested four men for unarmed robbery after they allegedly posed as DEA agents and attempted to steal prescription medications from a pharmacy.

Police credit a neighborhood watch group for reporting the suspicious activity.

According to a police report, Southfield officers were dispatched to a possible robbery in progress at a business in the 27000 block of Greenfield Road.

Witnesses reported seeing four black males acting suspicious and entering the business wearing masks and black T-shirts with “DEA” written on the front.

Officers arrived and located one suspect as he was exiting the business. He was wearing a DEA T-shirt and body armor, police said.

When the suspect was asked for his DEA identification, he entered a Black Chevy Impala — with a Detroit municipal license plate — put the key in the ignition, shifted the car into gear and was about to attempt to flee, police said. Officers reached in to put the vehicle back in park and then forcefully removed the suspect from the vehicle, police said. He resisted officers until they were able to handcuff him, police said.

Police determined that the suspects were posing as DEA agents.

Officers entered the business and located three other suspects. They were all ordered to the ground and taken into custody, police said.

Further investigation revealed that the suspects entered the business acting as DEA agents and yelling out that a raid was taking place, police said. They allegedly attempted to gather everyone into one area and took everyone’s cellphones, police said.

They ordered employees to load up all prescription medications into two boxes that were placed on the counter, police said.

Police also reportedly discovered that the municipal license plate on the suspected vehicle had been stolen from a municipal vehicle in another jurisdiction.

Southfield police warn residents to always be aware of their surroundings and to report suspicious incidents or persons to the local police.

Information compiled from Southfield police reports.