ST. LOUIS – Emergency crews are on the scene of a two-vehicle crash causing a major backup Thursday morning.

The crash happened on I-270 westbound and Washington around 6:05 a.m. Cars have been instructed to move over to the side ramp as only one lane is open.

Drivers can an alternate route of I-70 if coming from St. Charles County into St. Louis County as the backup spans over two miles. No injuries have been reported.

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