Brownsville, TX (KRGV) — Two men died after a three-vehicle crash on Paredes Line Road, according to the Brownsville Police Department.

Officials are still investigating what caused the crash. Police said the three-vehicle crash was at the intersection of Paredes Line Road and FM 802.

The men killed in the crash were identified as Ricardo Guajardo Sr., 82 and Jorge Arturo Guajardo, 47.

All three vehicles were traveling southbound on Paredes Line Road when the driver of a silver Chevy Tahoe had an apparent medical emergency and failed to control speed, hitting a black Chevy Trax with two men inside.

Police said the Chevy Trax then hit a silver Nissan Sentra. Three patients were taken to Valley Regional Medical Center and Valley Baptist Medical Center. 

Ricardo and Jorge were in critical condition during transport; they later died at the hospital. A third patient's condition was undetermined.

Police said the driver of the Chevy Tahoe and the people in the Nissan Sentra were in stable condition.