A maritime incident has been reported in the Black Sea in the vicinity of position 44-15.7N, 037-32.9E on June 22, 2017 at 0710 GMT. This incident has not been confirmed. The nature of the incident is reported as GPS interference. Exercise caution when transiting this area. Further updates may follow. This alert will automatically expire on July 4, 2017.  Reports of GPS degradations, disruptions, and other incidents or anomalies can be made via the U.S. Coast Guard Navigation Center website at: https://www.navcen.uscg.gov/?pageName=gpsUserInput.