Urgent Calls for Investigation
U.S. officials claim submarine-launched drones attacked flotilla ships.
Israel has blocked Gaza's sea access since 2009.
Flotilla claimed to carry aid to Gaza despite Israeli claims of no supplies.
Footage shows burning debris from Portuguese and British flagged ships.
Witness saw drone before explosion on flotilla vessels.
Israeli forces intercepted dozens of vessels and arrested 500 activists.
Greta Thunberg and others were detained and transferred to Ashdod Port.
Tunisian authorities denied drone sightings, while U.S. officials assert strikes occurred.
1 month ago