A massive pileup on a Florida highway has claimed the lives of at least 10 people and injured another 18.

What started as a 3-car accident in the early morning hours turned into a devastating multi-car pileup including tractor trailers, a tour bus and a multitude of cars.

Authorities are blaming the accident on dense fog which caused poor visibility. The fog is believed to be a factor in the initial crash. The highway was closed for a short time and then for reasons unknown the highway was reopened and minutes later the second accident occurred that caused a chain reaction resulting in the deaths of 10 people.