Ailing automaker Isuzu Motors Ltd. said Monday it posted a group net loss of 84.23 billion yen for the fiscal first half to Sept. 30, more than tripling its loss of 23.56 billion yen in the same period a year earlier, due to weak auto sales and hefty restructuring charges.

The firm logged a group operating loss of 21.35 billion yen, down sharply from a profit of 4.5 billion yen the previous year. Group sales plunged 23.9 percent year-on-year to 632.49 billion yen.

Isuzu officials said auto sales during the six-month period marked a year-on-year plunge of 12.8 percent to 139,412 units. Domestic sales were hardest hit by the company's withdrawal from the car and recreational vehicle markets.