CLAYTON COUNTY, Ga. (WXIA) – Two siblings, ages 5 and 6, were killed Tuesday evening in a horrific crash in on Georgia Highway 138 in Clayton County.

Investigators are looking at possible brake failure as a factor in the crash.

A street sign toppled over  and a small makeshift memorial at the entrance to a subdivision marks a part of the accident scene. A car was pulling out of the subdivision when it was struck. 

25 year old Jasmine Hamrick had her two young children — 6-year-old Jayona and 5-year-old JAaron — in her Honda Accord. She pulled out from Scott Drive onto Highway 138 and into the path of a semi-tractor cab  which was traveling westbound.

The truck driver told police he could not avoid hitting the car.  Both he and Jasmine Hamrick were not injured.

Jasmine Hamrick  had just picked up her children from her mother’s home.  She watches them after they finish school  at Church Street Elementary in Riverdale.

The children’s grandmother, Dena Bennett, said her daughter is inconsolable and she too is heartbroken.

“Those babies were my life. They were just a joy,” said Bennett.

Police say their accident reconstruction team is testing the brakes on Hamrick’s car to verify her account of the accident. At this point no charges have been filed.

The driver of the cab was taken to the hospital as a precaution. So far, no charges have been filed, but the investigation is just getting underway.

“Right now, the accident is unfolding,” said Clayton County Police Captain Angelo Daniel.

“So could there be charges?” asked 11Alive’s Kevin Rowson.

“There still could be charges, although that will be determined based on the results of that investigation,” Daniel replied.

An officer at the scene of the crash said Jasmine Hamrick was claiming she had a problem with her brakes and was swerving to avoid other cars.

The officer said the investigation will determine if that’s true or not.