Thieves posing as police officers walked off with more than $5 million of gold after telling a group of men simply to hand it over, Japanese media reported Wednesday.

The fake cops stopped the group and demanded briefcases that contained the gold, telling them: "We know it's smuggled," the Asahi Shimbun reported.

Apparently taken in by the disguise, the victims gave the pretend police what they asked for and watched as they drove off.