(La Porte County, IN) - Westbound traffic is moving again on the Indiana Toll Road following a fatal Thursday morning collision in La Porte County.

According to Indiana State Police, a semi-truck rolled over blocking both westbound lanes near the 50 mile marker just before 12 p.m.

The driver was pronounced dead at the scene.

The truck pulling a box trailer containing frozen food slid on its side for more than 200 feet before coming to rest, police said.

Police said the rollover happened when the semi for unknown reasons veered into the median.  The name and age of the driver, so far, have not been revealed.