Groupon has halted all of its gun-related promotions, the company said in a statement. "All scheduled and current gun-related deals featured on Groupon North America, including shooting ranges, conceal-and-carry and clay shooting, have been placed on hiatus while we review internal standards that shape the deal inventory we feature," Groupon spokesperson Julie Mossler told Daily Finance on Sunday. "The category is under review following recent consumer and merchant feedback." Although Groupon provided no further explanation for its decision, some commentators point to last month's shooting at Sandy Hook Elementary School in Newton, Conn. for the sudden move. The tragedy, which left 26 people — including 20 children — dead, ignited a fierce debate on gun control in the United States. Read the full story at Mashable.