According to the website Flightradar, which tracks flights around the world, three Black Hawk helicopters belonging to the US Air Force were heading over Romania towards Odessa.
The data also indicates that one unidentified aircraft is flying there. Odessa. It is also accompanied by an electronic reconnaissance aircraft EP-3E Aries II.
The presence of foreign military aircraft on the border of Romania and Ukraine has already been noted.
Recall that UH-60 Black Hawk helicopters now used by the US military as a multi-purpose tactical vehicle.