Deaths from Illinois dust storm crash rise to 7

Deaths from the Illinois dust storm pile-up rose to seven people due to "remains confusion," Illinois state police said in a news release on Tuesday. 

The severity of the highway crash made identifying remains difficult and state police said "what was previously believed to be the remains of one individual was two." 

Investigators initially thought that six people had died in the 72-vehicle pile-up that occurred shortly before 11:00 a.m. on I-55 near Farmersville on Monday in rural Illinois.