(La Porte County, IN) - La Porte County Police are continuing to investigate a two-vehicle crash that claimed the lives of two children.

An 11-year-old boy and four-year-old were pronounced dead at the scene of the early Saturday afternoon collision near Westville, reportedly riding in a southbound 2002 Chevy Trailblazer driven by 41-year-old Luis De Leon Muniz of Justice, Illinois. The Chicago area man was pulling a U-Haul trailer when he ran a stop sign at County Road 900 West and Joliet Road. Per authorities, his vehicle wound up in the path of an eastbound 2011 Ford F250 pick-up truck operated by Casey Krivak, 47, of La Porte. Both drivers were taken by ambulance to area hospitals with injuries to their upper bodies.

Police said a 16-year-old girl in the Muniz vehicle was airlifted to a regional hospital with an upper-body injury. Norma Atempa, 36, who was also riding in the Muniz vehicle, was taken to an area hospital by ambulance with an upper-body injury.  Investigators are waiting for the results of a toxicology test to determine if alcohol or drugs were a factor in the collision.