Royal Caribbean International spokeswoman Cynthia Martinez says the engine fire occurred Friday at about 7:45 p.m.
The gargantuan cruise ship was sailing from St. Maarten to Port Everglades when the fire broke out.
Martinez says the ship's high fog system was activated the fire was quickly contained and extinguished.
No passengers or crew were injured, and the ship never lost power. It is scheduled to return to Fort Lauderdale on Sunday.