Loan delinquencies and writeoffs continued to batter the balance sheets of Inland-based credit unions in the third quarter, with the three largest of the member-owned cooperatives reporting net financial losses for the fourth consecutive period.

A climate of high unemployment and loan foreclosures took the biggest toll on San Bernardino-based Arrowhead Credit Union, which posted a $46.3 million loss in the latest period, ending Sept. 30.