Authorities continued investigating Sunday the cause of a massive fire that broke out, destroying three multimillion-dollar yachts.

The blaze started around 6 a.m. on Saturday morning, quickly spreading from one yacht to another.

Officials said the smallest of the boats was 65 feet.

“The difficulty we have is that the fire is in compartments inside the yacht and that make it very difficult for the water and foam to reach it,” said Ignatius Carroll with Miami Fire Rescue.

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