This morning, a USAF Northrop Grumman RQ-4B (reg. 11-2046 – c/s FORTE11) took off from NAS Sigonella and headed towards the Black Sea, but it seems to have encountered some issues after takeoff. The drone, shortly after entering the Greek FIR (Flight Information Region), circled for a while and then returned back towards the Sicilian base.
After a few orbits over the Ionian Sea, it reversed its course again, resuming its original mission.
It’s possible that there were communication issues that were later resolved.