MEMPHIS, Tenn. — Seven weapons belonging to Wake County's Special Weapons and Tactics team were stolen from a van outside a Memphis barbecue restaurant Monday afternoon, authorities said.

Members of the Wake County Sheriff's Office Special Response Team were on their way to Little Rock, Ark., for the World SWAT Challenge and stopped at the Interstate BBQ Restaurant in Memphis, authorities said. While the deputies were inside, two men drove up in a Ford Explorer and broke into the van, authorities said.

Three assault rifles with several hundred rounds of ammunition, two 12-gauge shotguns and two .357-caliber semiautomatic handguns were stolen from the van, authorities said. Two bags of personal belongings also were taken, authorities said.

Memphis police have obtained surveillance camera footage of the theft and are investigating the case.

The Wake County deputies had two other vans with weapons and were able to continue on to the SWAT competition.