Westbound Interstate 70 is closed just outside Glenwood Springs after a tractor-trailer tipped over spilling its load of pigs, officials say.

Glenwood Springs police chief Terry Wilson said the tractor-trailer was the only vehicle involved. Colorado Parks and Wildlife are helping with the animals.

There is no estimated time for when the highway will reopen.

LIVE UPDATE on WB I-70 closure just outside of Glenwood Springs. pic.twitter.com/kt9DhEhZT9 — CDOT (@ColoradoDOT) September 11, 2017