Scandal-laden Mitsubishi Motors Corp. said Wednesday its group net loss expanded to 54.7 billion yen in the April-June quarter from a loss of 51.1 billion yen a year earlier.

The automaker attributed the weaker performance to a sales plunge and extraordinary losses from a halt in developing new models and a cutback of its Australian operations.

Sales fell 8.1 percent from a year earlier to 557.6 billion yen in the quarter due to plunging auto sales in Japan and North America.