At least one man and one woman were unconscious to hospital with severe burns, while police earlier received reports of trapped residents, media reports said.
The flooding since last week has stranded residents and travelers in their homes and hotels, with rescuers using boats, jet skis and military trucks amid high floodwaters.
Overseas, Trump has ordered strikes on alleged drug-smuggling vessels in the Caribbean and eastern Pacific Ocean that killed more than 80 people and which experts say are illegal.