DAYTON — UPDATE @ 8:15 p.m.:
Traffic is back to normal after a semi jackknifed this evening in the southbound lanes of Interstate 75 at state Route 4.
FIRST REPORT
A jackknifed semi is diverting traffic on southbound Interstate 75.
The crash happened shortly after 6 p.m. at state Route 4. There are no injuries reported.
The crash is backing up traffic nearly to Keenan Avenue.