SAN DIEGO (FOX 5/KUSI) -- Behavioral and mental health professionals at Kaiser Permanente are continuing to walk the picket lines throughout Southern California this week. On Monday, workers at Kaiser Permanente San Diego Medical Center in Kearny Mesa started picketing at 8 a.m. and continued until 2 p.m. They joined other workers in similar movements happening across the state, including Kaiser's Los Angeles, Fontana and Anaheim medical centers. Fighting for a cure: Thousands of people walk to raise awareness and money for type 1 diabetes research The strike, organized by the National Union of Healthcare Workers, continued Tuesday morning in Riverside, Woodland Hills, Irvine and Baldwin Park. NUHW began the strike on Oct. 21, shortly after the health system submitted a three-page document to the California Department of Managed Health Care, notifying the department of the possibility of a strike. In a statement posted to its website on Oct. 25, Kaiser Permanente said, in part, "The union has been slow-walking negotiations and creating theatrical disruptions, despite the strong proposals Kaiser Permanente has put on the table. We ask NUHW to engage productively at the bargaining table to reach an agreement." Kaiser added that it remains "committed to negotiating in good faith until a deal is done." Its proposals include an 18% wage increase over the four years of the workers' contracts, a fully subsidized retiree medical plan, $3,000 in tuition reimbursement for mental health professionals on top of the amount offered to all Kaiser employees and others. "This isn't a plan, it's a recipe for mass appointment cancellations, just like what we saw in Northern California," said Sal Roselli, the president emeritus of the union representing Kaiser mental health professionals in Northern and Southern California, in a press release Monday.