An overturned cattle truck caused big headaches on an Omaha freeway interchange Thursday. The truck, traveling from Ainsworth Nebraska to a South Omaha slaughterhouse, overturned just before 10 pm on the I-80 & I-680 interchange curve. Approximately 12 cows were set loose across multiple traffic lanes.

Officers from Omaha Police and Troopers from the Nebraska State Patrol closed most of the interchange while the cows were contained. Some cows were unable to be corralled and were shot dead after trying to make an escape.

Traffic lanes on I-80 were opened back up after midnight.

Follow the entire event Twitter thread here:

Accident: I-680 to I-80 EB on the curve.

Overturned cattle truck leaking fuel. Cattle loose on the interstate.

OFD: E52, R33 — Mean Streets Omaha ? (@MeanStreetsOMA) December 30, 2016

Looks like the cattle truck is on its tires again. Still need to avoid the area. pic.twitter.com/QYcFs0acUY — Ofc. Ryan Miller (@OPDOfcMiller) December 30, 2016