ST. LOUIS COUNTY, Mo. – One person was killed in a multi-vehicle crash late Thursday night on westbound 270 at New Florissant.

The area was closed from the time the crash happened at about 11:30 p.m. to about 4:45 a.m. Friday.

The Missouri State Highway Patrol said it involved a motorcycle, a tractor-trailer, and multiple other vehicles. It is unknown at this time if anyone was injured. It is also unknown what led up to the crash.

FOX 2 will continue to update this story with more information as it becomes available.