UPDATE: Crews have cleared the wreckage on I-43 following the crash, and lanes are expected to reopen soon.
OZAUKEE COUNTY -- All southbound lanes of I-43 at WIS 60 in Grafton were closed Tuesday afternoon due to a crash.
The closure was anticipated to last at least two hours, according to the Wisconsin Department of Transportation.
There's no word yet on what caused the crash, or if there are injuries.
Drivers are encouraged to exit at WIS 60 and head west to Port Washington Rd. Turn south on Port Washington Rd. to Pioneer Rd., then east on Pioneer back to I-43.
Check back often for updates on this developing story.