A couple has been killed in an accident only minutes after getting married.

Harley Joe Morgan, 19, and Rhiannon Boudreaux Morgan, 20, said their vows in a Texas courtroom and were just driving out of the courtroom when they collided with a pick-up truck.

The groom was driving a Chevrolet when he collided with a Ford pick-up truck which was towing a trailer carrying a tractor at 3pm on Friday, according to KFDM.

Childhood sweethearts killed in accident only minutes after getting married

The couple, from the Orange County city of Vidor, were pronounced dead at the scene of the crash.

However, the male driver of the pick-up truck was not injured, said police.

Harley and Rhiannon were childhood sweethearts and always wanted to get married.

Harley’s mum Lashawna Morgan and sister Christina Fontenot witnessed the horrific scene as they drove behind the newlyweds.

Childhood sweethearts killed in accident only minutes after getting married

Lashawna narrated how she tried to pull the couple from the wreckage as she watched her child die in front of her.

She said she had witnessed her "own worst nightmare" and the image will "haunt her for the rest of her life".

The heartbroken mother added that her son and Rhiannon had been in love ever since they met at the age of 13.

Lashawna told KDFM: "They had just gotten married. They haven’t even been married for five minutes. Those two babies. The only thing that they wanted was to get married and start their life. The two of them had so many dreams."

She added that they were planning a bigger ceremony with all their friends and family on December 20 so they could enjoy a Christmas wedding.

Justice of the Peace Joy Dubose-Simonton, who conducted the couple’s wedding later went to the crash scene to pronounce the couple dead, said KFDM.