(KMOV) -- A multi-vehicle wreck caused a massive traffic back-up on Interstate 64 in west St. Louis County on Tuesday.
The accident happened on eastbound I-64 past Boone's Crossing around 7:10 a.m.
Two right lanes were closed at one point while crews worked to clear the scene. Both lanes have since re-opened.
It wasn't clear if anyone was injured.
Additional details surrounding the wreck were not immediately available.