State Sen. Marc Pacheco, D-Taunton, has organized a meeting at noon Sunday at First Parish Church to discuss protecting mental health services in the region.

“Those are critical services provided at Taunton State Hospital,” Pacheco said.

“This is a comprehensive mental health system. When you take a critical piece of the system away, it undermines the whole system. We’re inviting federal, state, local, religious and community leaders, the National Alliance for the Mentally Ill … We will have an action plan for people to move forward, to begin calling and advocating to do what we can.”