LYONS, Colo. (CBS4) – Colorado wildlife officials say there was a significant fish kill in northern Boulder County after a tanker truck flipped over and spilled gas into the North St. Vrain Creek in Lyons.

(credit: CSP)

Good Samaritans tried to rescue fish after the crash, which happened on Tuesday.

(credit: CSP)

It happened on Highway 36 near the intersection with Apple Valley Road.

Jesse Sarles