In one of the oddest crimes in recent memory, a restaurant in Florida’s Disney Springs claims that a dude in scuba gear swam up, robbed the place and then swam away.

According to local outlet WFTV 9, the man swam up after the restaurant closed, then took off his wetsuit and told the employees to stand in the corner of the room before tying them up. After that, he took between $10,000 and $20,000, put his wetsuit back on and swam away. He wasn’t armed.

Police have an image of the man — he was caught on camera while trying to spray paint over it — but apart from his look, they don’t have a lot of leads. So, if you’re in Florida and you see a scuba diver swimming toward your boat, watch out!