Japanese conglomerate Toshiba Corp. announced Tuesday a strategic restructuring of its Pittsburgh-based Westinghouse Electric Co. LLC unit, which filed for bankruptcy in New York.

The move comes a month after Toshiba took a $6.3 billion write-down on cost overruns related to Westinghouse, a major player in the U.S. nuclear power industry. The soaring losses quickly took a toll at Toshiba, whose CEO Shigenori Shiga announced his resignation in mid-February.