DALLAS (CBSDFW.COM) – Authorities are investigating an early Monday crash in Dallas that ultimately ended with three people dead. The incident happened at about 2:45 a.m. near the intersection of Harry Hines Boulevard and Lombardy Lane, and shut down lanes of traffic in the area.

A car was traveling northbound along Harry Hines Boulevard when it started coming up on a UPS truck at the Lombardy Lane stoplight. The 18-wheeler’s 53-foot trailer was empty at the time. However, the car’s driver did not stop and slammed into the back of the big rig. The UPS truck’s rear bumper broke as the car went underneath the trailer.

Officials had to request a specialized Dallas Fire-Rescue crew because of victims that were pinned in the wreckage.

Two of the three victims — those who were sitting in the car’s front seats — were pronounced dead at the scene. The backseat passenger of the car was taken to Parkland Hospital in Dallas in critical condition. That person later died at the hospital from their injuries. The names of these individuals have not yet been released.

Investigators remained at the scene for hours.

Several lanes near the intersection were shut down while officials with the Dallas Police Department, Dallas Fire-Rescue and the Dallas County Medical Examiner’s Office investigated the crash scene. Those lanes have since opened back up to regular traffic.