BROOKLYN - Police have arrested four suspects in connection to a robbery pattern in Brooklyn.

The men were wanted in connection to three robberies across South Brooklyn over the span of a month and a half.

Surveillance video was released of the men robbing the Cigar Land cigar shop on Flatbush Avenue at gunpoint.

The men are also accused of robbing a Mill Basin pharmacy at gunpoint. 

Police say the suspects demanded cash, cigarettes and prescription drugs during each robbery.

Federal investigators have taken over the case, according to police, and the four suspects are expected to be indicted on federal charges.