WATCH: Fireworks explode inside a Florida Wendy's

Someone let off fireworks inside a Wendy's north of Miami last month.

DEERFIELD BEACH, Fla. (WTHR) - Security camera video shows someone opening the door of a Wendy's restaurant, then tossing in a Roman candle-like firework.

First came a small explosion. Then, a much larger one.

There was only minor damage to the wall of the restaurant, located north of Miami. But no one was injured.