UPDATE (8:46 a.m., Oct. 2, 2012): Emergency workers have tended to all the injured drivers and passengers. A fuel leak has been contained and all lanes have been reopened to traffic.
ORIGINAL POST: A crash with injuries at about 7:45 a.m. on the westbound I-94 St. Croix River bridge has closed three lanes and backed up traffic on the freeway.
An initial release from the Wisconsin State Patrol says, "A crash across the river in Minnesota has traffic backed up for several miles in Wisconsin. The crash is blocking the two right lanes , and drivers are being asked to move to the left lane."
For up-to-the-minute traffic information, check out the Hudson Patch Traffic Map.
This post will be updated when more information is available.