Six people have died following a crash involving a semi truck in Arizona on Friday afternoon.

The accident happened on July 2nd on Interstate 10 in Tonopah at around 1:20 p.m. 

According to AZ Family News, a semi truck was heading east on I-10 when, for unknown reasons, it smashed into the back of a Nissan Altima carrying a mother and her five children. The force of the impact split the car in half and set it ablaze, but the rig kept going and struck an SUV with a mother and her four children inside. 

 Five people inside of the Altima were pronounced dead on scene. A sixth person inside of the car was pronounced dead some time later. The family in the SUV were all transported to a nearby hospital with serious injuries. Their conditions have not been released. 

“I don’t understand how in broad daylight, you can hit two cars, someone is going to have to explain this to me.” said Kwame Delbridge, brother of the woman killed in the wreck. 

“They were too young, they were too young for this to happen in such a tragic way to them.”

The truck driver was not hurt in the crash. Police are still investigating the incident and no possible cause has been released. It is not clear if speed or impairment were factors in the wreck.