State police near Uniontown say at least three men were victimized by the suspects who are all in their late teens or early 20s.
Police say one man was robbed of $250 and two cell phones when he answered an ad about an iPad for sale on Aug. 1.
A second man says he was forced to drive to an automatic teller machine before he was robbed of his cell phone and $500 on Aug. 8.
And the third victim says he was met by two gun-toting men who fired shots when he sped away after arriving Aug. 9 to buy a laptop computer.