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ST. LOUIS, Mo – A multi-vehicle accident involving a semi-truck causes major delays to drivers morning commute in north St. Louis County Tuesday morning.

The crash occurred westbound on Interstate 270 near the Washington/Elizabeth exit.

Bommarito Automotive SkyFox flew over the area where first responders are blocking all lanes of traffic and assisting aid.

Only the shoulder lane is getting by at this time.

It is unknown when the lanes will reopen.