Italian police are searching ArcelorMittal’s offices in Milan and the southern city of Taranto in an investigation into the troubled Ilva steel plant, which the company wants to hand back to the government, ArcelorMittal said in a statement. A police spokesman did not immediately respond to a request for comment. The Italian government filed an urgent court appeal on Friday to try to stop ArcelorMittal walking away from a 2018 deal to buy the heavily polluting Ilva plant, which employs some 8,200 workers in an area of high unemployment.