(May 10) Negotiations between the United Food and Commercial Workers Union and Southern California’s three largest supermarket chains were scheduled to resume next week after breaking off Tuesday as a result of a disagreement over health insurance.

According to the Los Angeles Times, the union said Albertsons, Ralphs and Vons want the chains to pay less and workers to pay more for health benefits.

Ralphs said the chains offered an improved insurance proposal during the negotiations, the Times reported.

The two sides have previously said they are hoping to avoid a repeat of a bitter, five-month strike and lockout that started in October 2003.