SOUTH ROCKWOOD, Mich. -- A tractor-trailer rig crash closed lanes on northbound I-75 near this Monroe County community today, authorities said.
There were no reported injuries, according to the Monroe County Sheriff's Office.
The semi crashed and overturned near South Huron River Road sometime before 7 a.m., a sheriff's dispatcher said.
As of 12:10 p.m., all lanes were blocked, a dispatcher said.
South Rockwood is about 30 miles northeast of Toledo.