The crash occurred at approximately 3:50 p.m. near the offramp to County Road K in the town of Yorkville, the department said. The three left lanes remained closed as of 4:36 p.m., and there was no immediate word on when they would reopen.

The department did not release information about the number of vehicles involved, whether anyone was injured, or what caused the crash. The Racine County Sheriff's Office, which typically assists with highway incidents in the area, did not immediately respond to a request for comment.

The stretch of I-41/94 near the County Road K interchange is a busy corridor for commuters and truck traffic moving between Milwaukee and Racine, and lane closures there can quickly create backups during the afternoon rush. Drivers heading north through Racine County on Wednesday evening were advised to expect delays and to consider alternate routes, including state highways that parallel the interstate.

This is a developing story. Check back for updates as more information becomes available.