Update posted at 7:12 p.m.:

A tanker carrying a hazardous chemical over- turned on I-74 Friday morning. Luckily, only five to ten gallons of the chemical leaked out. Indiana State Police

Nearly 12 hours after it was shut down, Indiana State Police say Interstate 74 eastbound reopened at 7:04 p.m. Friday evening.

The overturned tanker truck has been removed from the scene.  All traffic patterns are now resuming normally.

Update posted at 1:32 p.m.:

Indiana State Police report that I-74 westbound has reopened at the accident scene, six hours after the semi crashed.  Traffic will be congested in that direction for a while longer due to the traffic backup.

Eastbound lanes remain closed at the 159 mile marker as authorities are now working to remove the overturned tanker.

Update posted at 11:52 a.m.:

Indiana State Police say I-74 will likely remain closed most of the day Friday because of this morning’s semi crash.

Troopers say a tanker truck driven by Andrzej Grela, 29, of Chicago, was hauling 4,000 gallons of a chemical called phthalic anhydride molton when it encountered some uneven pavement in a construction zone at the 159 mile marker in northwestern Dearborn County.

Before he was aircared to University Hospital with a head injury, Grela told investigators the liquid began to slosh and caused the truck to drive off the edge of the highway where it struck a concrete barrier and overturned.

Indiana State Police

Five to 10 gallons of the chemical spilled. It has been contained.

The chemical is over 300 degrees Fahrenheit and once it cools to below 270 degrees it solidifies and becomes more stable.

HAZMAT crews will wait until the chemical cools before recovering it.

There is no estimate on when I-74 will reopen in either direction.

Update posted at 9:40 a.m.:

Indiana State Police troopers and Dearborn County Sheriff's deputies remain on the scene of a semi crash turned possible HAZMAT situation.

The semi tanker was transporting some type of flamable chemical when it overturned at the 159 mile marker at about 7:20 a.m.

Dispatchers say the interstate may remain closed in both directions for much of the morning.

Traffic is being diverted off the interstate at the Sunman-Milan/SR 101 exit in Ripley County and at the St. Leon/SR 1 exit near St. Leon. Motorists can take State Road 46 as a detour between the two exits

There is no word on the name or condition of the semi driver, who was taken to University Hospital in Cincinnati by Aircare.

Original story posted at 8:21 a.m.:

(Jackson Township, Ind.) – Commuers are finding that Interstate 74 has been shut down in Dearborn County.

I-74 in northwest Dearborn County. Google Maps

A semi hauling a tanker trailer overturned in the eastbound lanes of the interstate at the 159 mile marker near the St. Peters Road underpass at about 7:20 this morning.

At least one person was seriously injured as a medical helicopter was called to the scene.

Dearborn County Emergency Management has been called to the scene because of a spill from the tanker. HAZMAT has not been called upon yet, say dispatchers.

Officers report the traffic backup is about one mile long.

Traffic is being restricted from entering EB I-74 from State Road 1 near St. Leon. State Road 46 is being offered as a detour.

Stay tuned to Eagle 99.3 for more information.