Turkish Airlines has issued this statement:
We keep closely monitoring the health status of these passengers and our team.
Turkish Airlines states that since there were not seen any technical failure on the TC-JJG tail-coded aircraft, which were exposed to unforeseen adverse weather conditions (turbulence) before landing at New York JFK Airport, during the necessary technical examinations, the given airplane departed from JFK on time for operating its scheduled flight between New York (JFK) and Istanbul (IST).
With kind regards,
Turkish Airlines Inc.