Authorities say another person has died in a fatal crash on a Florida highway, bringing the death toll to seven.

Two big rigs and two passenger vehicles collided and spilled diesel fuel across the highway Thursday on Interstate 75 near Gainesville, sparking a massive fire.

The Gainesville Sun reports several others were taken to the hospital, some with critical injuries. Emergency crews extinguished the fire and said they were treating the crash as a homicide investigation.

Authorities have not why they are treating the deaths as potential homicides.

Authorities say their top priority is identifying the victims so they can notify their relatives.
The aftermath closed part of the highway in both directions for hours, causing massive delays.