Worcester-based insurer The Hanover Group reported a $61.8 million net loss in the third quarter, compared to net income of $53.9 million in the same period last year, a $115.7 million negative swing.

The loss included $52.8 million in realized losses on investments and a loss from discontinued operations of $18.3 million. Realized losses include previously disclosed impairments related to Lehman Brothers and Washington Mutual holdings of $36.7 million, the company said.

Year-to-date, The Hanover reported a net loss of $13.5 million, compared to net income of $177.3 million in 2007.