GALESBURG, Mich. (AP) — State officials are still working to identify those responsible for some environmental contamination due to January's massive pileup on snowy Interstate 94 in southwestern Michigan.

The crash killed a 57-year-old trucker and closed a stretch of the roadway for two days. Police announced in March that dozens of drivers were being ticketed, mostly for traveling too fast for road conditions.

The pileup caused environmental contamination with hazardous materials leaking from ruptured containers and tanks, seeping into the ground and flowing into drains. The Detroit News reports officials want to compel those responsible to pay for cleanup.

Officials with Michigan's Department of Environmental Quality are going through accident reports, videos and photos from the crashes with help of state police.

The Jan. 9 chain-reaction crashes involved 193 vehicles.

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