NORTH STONINGTON - The submarine that visited the deepest spot in the world's oceans has been scorched in a truck fire on a Connecticut highway.

Connecticut State Police tweeted that they responded to a fire on a truck transporting the Deepsea Challenger on Interstate 95 at about 5 a.m. Thursday in North Stonington.

The submersible brought filmmaker and ocean explorer James Cameron to the deepest part of the Mariana Trench near Guam in 2012.

It was not immediately clear if the sub itself caught fire, although a photo posted by police showed significant black scorching on the vessel's bright green hull.

The sub is now in possession of the Woods Hole Oceanographic Institution in Falmouth, Massachusetts. A spokeswoman for WHOI said while they are aware of the fire, they don't have details.