A Casper woman is accused of causing a number of wrecks on I-25 earlier this week.

Thirty-seven year old Amber Robles has pleaded not guilty to charges of DUI, reckless endangerment, interference with a peace officer, no insurance, leaving the scene of a crash, no seat-belt, no interlock device, and two charges of improper lane use.

Troopers with the Wyoming Highway Patrol say just after 8:30pm on Tuesday June 17th, calls started coming in regarding a motorist that was traveling southbound in the northbound lane of I-25 near the Center Street exit.

A short time later, another call came in that the vehicle had caused a crash near the Bryan Stock Trail exit.

When troopers arrived on scene they spotted Robles and said she was being uncooperative, plus there was an odor of alcohol coming from her.

Witnesses told investigators that Robles' vehicle was southbound in the northbound lane and then eventually was going northbound in the southbound lane and caused another crash, that resulted in four people going to the hospital.

The Patrol had to close the freeway to investigate and clean up the mess.

When questioned, Robles became combative and charged towards one of the deputies.

She was eventually subdued, but received a bloody nose in the process, and then spit blood at the troopers.

Robles was then taken to Wyoming Medical Center, where she became combative again and had to be sedated.

Investigators learned that Robles has 2 prior DUI convictions, and a third unrelated DUI case is pending.

She also did not have an ignition interlock device in her vehicle as required.

Robles is being held on $20,000 bond awaiting trial.

While the freeway was closed, troopers say 26-year old Jeremy Caster ran one of the roadblocks, and almost made a bigger mess of things.

He has pleaded guilty to 3 charges for his actions and is waiting to be sentenced.

Two other truck drivers were cited, for running road blocks as well.