A 61-year-old man who suffered critical injuries after being pulled into an MRI machine while wearing a metal chain has died, police said Friday. The incident occurred Wednesday afternoon at a medical building in Westbury, New York, according to the Nassau County Police Department.

A man who entered an M.R.I. room during a scan in Westbury, N.Y., on Wednesday was pulled into the machine by his chain necklace and was hospitalized in critical condition, the authorities said.

The necklace was described as a “large metallic chain,” according to a statement posted online by the Nassau County Police Department.