A trucking accident in Arlington, Texas killed dozens of cows and disrupted the flow of traffic late Monday night.

The driver misjudged how much space he had to turn, police said. Between 40-45 cows died, including one that was hit by a vehicle.

A truck towing a trailer with about 80 cows rolled over near I-30 in Arlington, killing about half the animals.

Several dozen cattle were inside the trailer when it rolled over on I-30 near Baird Farm Road early Tuesday morning. It’s also not known how many cattle died, but there were reports of at least one wandering away.