A homeless woman died when she was run over by a tractor trailer in a parking lot in Los Angeles Tuesday morning.

The accident occurred around 12:45 a.m. in the Vons parking lot near the intersection of Montana Street and North Alvarado St. in the Echo Park neighborhood.

According to a Los Angeles Police spokesperson, the driver of the big rig was making a U-Turn when he ran over the woman, believed to be 30 years old, who was lying under cardboard and debris.

He did not realize what had happened until someone flagged him down, police said. Witnesses at a nearby taco stand were also surprised to learn a person was in the debris pile.

The driver of the tractor trailer is unlikely to face charges.