A U.S. Air Force F-15 pilot shot down near Iran last June told investigators directly he saw drones move in odd, clumping patterns.
He described it like jellyfish tentacles expanding then contracting.
Iran has not commented on the report.
Stories reported it on The Times of Israel, WION, MSN and Anadolu Ajansı.
The sighting fits into escalating fights between the U.S. and Iran in the skies.
Downed US F-15 pilot describes multiple Iranian drones in 'jellyfish' formation: Report Anadolu Ajansı
US pilot downed over Iran reported seeing jellyfish-like drone formation - report The Times of Israel
'Real alien sh*t': US pilot downed over Iran describes 'jellyfish' drone swarm Ynetnews
Report: Downed US pilot sighted 'jellyfish' drone formation over Iran skies JNS
F-15 pilot shot down over Iran saw 'jellyfish' swarm of drones Yahoo