Police in Minnesota arrested a suspect outside of UnitedHealthcare's headquarters in Minnetonka on Monday, four months after UnitedHealthcare chief executive officer Brian Thompson was shot to death in New York City.

A suspicious person was arrested Monday morning at UnitedHealthcare’s headquarters in Minnesota, authorities said. The unidentified person’s presence prompted a massive police response at the provider’s campus in Minnetonka, a southwest Twin Cities suburb, the local police department wrote on social media.