Joan Rivers' New York medical clinic under investigation after her death

Joan Rivers. (AP file photo)

NEW YORK (ABC News) -- The clinic where Joan Rivers was undergoing a procedure prior to her hospitalization and death is now under investigation -- though wrongdoing is not suspected.

The New York State Health Department told ABC News that it has opened a "full investigation" into Yorkville Endoscopy Center in New York City to determine whether the clinic would be cited for violations.

As of now, there is no suspicion of wrongdoing and the investigation is routine, a source briefed on the case told ABC News. The investigation was triggered automatically by a complication during a procedure at an outpatient clinic, the source added.

Investigators have already visited the clinic.

There are certain types of incidents that must be reported to the state and the events surrounding Rivers' emergency was one of those, though health officials declined to elaborate what specifically triggered the investigation.

Yorkville Endoscopy was established in 2013 and was inspected by the State Health Department prior to opening. To date, there have been no complaints or violations regarding the facility.

A woman who answered the phone at the clinic told ABC News the clinic had no comment.

Rivers, 81, was taken to Mount Sinai Hospital in Manhattan on Aug. 28 after an emergency call reported she was in cardiac arrest at Yorkville Endoscopy.

Rivers had been unconscious and sedated since her arrival at Mount Sinai, but died Thursday.