Crews spent much of Thursday morning putting out boat fires that broke out at Crandon Marina near Key Biscayne.
Chopper 6 was over the scene near the 4000 block of Crandon Boulevard, where heavy smoke could still be seen coming out of one vessel as crews worked to extinguish the flames.
Miami-Dade Fire Rescue officials said a large sailing vessel caught fire around 7 a.m., then broke loose and set another vessel on fire. It kept drifting and set another small vessel on fire, which then burned another large boat, officials said.
Crews were able to extinguish the fires and save the last large boat. A total of 25 units responded to the fire.
No injuries were reported and the cause of the fire remains under investigation.