An Orlando Krispy Kreme sustained extensive damage Thursday morning after a fire ignited in the kitchen, officials said.

The fire broke out around 4 a.m. at the Krispy Kreme at 4080 Millenia Boulevard.

No one was inside the doughnut store at the time of the fire, and no injuries were reported.

The cause of the fire is under investigation.

It's not known when the store will reopen.

Watch Local 6 News for more on this story.