(WREX)-UPDATE: The roadway is now open.
Original story: A crash is blocking part of I-39/90 southbound between Janesville and Beloit, according to the Wisconsin DOT.
Cameras in that area show traffic backed up in both directions.
Wisconsin DOT says the crash is in the southbound lanes near WIS 11 West/Avalon Road, blocking the left lane.
The DOT map shows traffic is slowed in both directions.
No word if anyone was hurt in the crash or how many cars were involved.
This is a developing story.