A 67-year-old man unhappy with the health care he’d received opened fire at a clinic Tuesday, killing 1 person and wounding 4 others, and bomb technicians were investigating a suspicious device left there and others at a motel where he was staying, authorities said.

All 5 victims were rushed to the hospital, and a hospital spokeswoman confirmed the 1 death Tuesday night. Three remained in stable but critical condition and a fourth had been discharged.

The attack happened Tuesday morning at an Allina clinic in Buffalo, a community of about 15 000 people roughly 64 kilometers northwest of Minneapolis. Authorities said Gregory Paul Ulrich, of Buffalo, opened fire at the facility and was arrested before noon.