Police in Washington D.C. said Tuesday that they are investigating a report that weapons were found inside a locker room at the Verizon Center.

Last week, the Wizards said that guard Gilbert Arenas stored unloaded firearms in a container in his locker at the arena and that the NBA was looking into the situation.

"They've been [investigating] for the last two weeks," Arenas said Tuesday night. "You guys just found out about it."

Arenas said he was cooperating with the investigation and that he hadn't brandished the weapons in the team's dressing room.

"They just want to know where I got them from," Arenas said. "They want to make sure they're not dirty guns."