Westbound I-44 slowed down due to overturned vehicle

ST. LOUIS – An overturned vehicle on I-44 heading west into the city has traffic at a near standstill.

The crash happened near the Jefferson exit on the major highway just after 6:30 a.m.

The cause of the crash is unknown at this time.

This is a breaking news story.

More details will be posted as this story develops. Tune in to FOX2  for the latest update.